H. Sakaki, M. Tanaka and J. Yoshino, "One-Atomic-Layer Heterointerface Fluctuations in GaAs-AlAs Quantum Well Structures and Their Suppression by Insertion of Smoothing Period in Molecular Beam Epitaxy", Japanese Journal of Applied Physics 24, L417 (1985).
M. Tanaka, H. Sakaki, J. Yoshino and T. Furuta, "Photoluminescence and Absorption Linewidths of Extremely Flat GaAs-AlAs Quantum Wells Prepared by Molecular Beam Epitaxy Including Interrupted Deposition for Atomic Layer Smoothing", Surface Science 174, 65 (1986).
M. Tanaka, H. Sakaki and J. Yoshino, "Atomic-Scale Structures of Top and Bottom Heterointerfaces in GaAs-AlxGa1-xAs (x=0.2〜1) Quantum Wells Prepared by Molecular Beam Epitaxy with Growth Interruption", Japanese Journal of Applied Physics 25, L155 (1986).
M. Tanaka and H. Sakaki, "Atomistic Models of Interface Structures in GaAs-AlxGa1-xAs (x=0.2-1) Quantum Wells Grown by Interrupted and Uninterrupted MBE", Journal of Crystal Growth 81, 153 (1987).
M. Tanaka, H. Ichinose, T. Furuta, Y. Ishida and H. Sakaki,, "Direct Observation of Atomic Step Structure at GaAs-AlAs Heterointerfaces in Transmission Electron Microscopy and Improved Lattice Image to Detect the Interface by Material-Dependent Patterns", Journal de Physique 48, C5-101 (1987).
M. Tanaka and H. Sakaki, "Surface Migration Study of Atoms and Formation of Truly-Smooth Top and Bottom Heterointerfaces in GaAs-AlAs Quantum Wells by Temperature-Switched Technique in Molecular Beam Epitaxy", Journal of Superlattices and Microstructures 4, 237 (1988).
M. Tanaka and H. Sakaki, "Interface Roughness of GaAs-AlAs Quantum Wells Grown by Molecular Beam Epitaxy: Misorientation Effects", Journal of Applied Physics 64, 4503 (1988).
M. Tanaka and H. Sakaki, "MBE Growth and Optical Properties of Novel Corrugated-Interface Quantum Wells", Japanese Journal of Applied Physics 27, L2025 (1988).
M. Tanaka and H. Sakaki, "Formation of Planar Superlattice States in New Grid-Inserted Quantum Well Structures", Applied Physics Letters 54, 1326 (1989).
H. Sakaki, T. Noda, K. Hirakawa, M. Tanaka and T. Matsusue, "Interface Roughness Scattering in GaAs-AlAs Quantum Wells", Applied Physics Letters 51, 1934 (1987).
G. Fasol, M. Tanaka, H. Sakaki and Y. Horikoshi, "Interface Roughness and the Dispersion of Confined LO Phonons in GaAs-AlAs Quantum Wells", Physical Review B38, 6056 (1988).
G. Fasol, M. Tanaka, H. Sakaki and Y. Horikoshi, "Interface Roughness and Confined LO Phonons in Quantum Wells", Journal of Crystal Growth 95, 75 (1989).
T. Noda, M. Tanaka and H. Sakaki, "Electron Mobility in Potential Inserted Quantum Wells (PI-QWs)", Journal of Crystal Growth 95, 60 (1989).
Y. Arakawa, T. Sogawa, M. Nishioka, M. Tanaka and H. Sakaki, "Picosecond Pulse Generation (<1.8ps) in a Quantum Well Laser by a Gain Switching Method", Applied Physics Letters 51, 1295 (1987).
T. Sogawa, Y. Arakawa, M. Tanaka and H. Sakaki, "Observation of a Short Optical Pulse (<1.3ps) from a Gain Switched Quantum Well Laser", Applied Physics Letters 53, 1580 (1988).
J. Motohisa, M. Tanaka and H. Sakaki, "Anisotropic Transport and Non-Parabolic Miniband in a Novel In-Plane Superlattice Consisting of Grid-Inserted Selectively Doped Heterojunction", Applied Physics Letters 55, 1214 (1989).
H. Sakaki, M. Tanaka, T. Noda and J. Motohisa <Invited paper>, "Atomic-Scale Characterization and Control of Interface Roughness and Corrugation in Quantum Heterostructures", Defect Control in Semiconductors, Edited by K. Sumino, North Holland, 1990.
M. Tanaka, T. Suzuki and T. Nishinaga, "Surface Diffusion of Al Atoms on GaAs Vicinal Surfaces in Molecular Beam Epitaxy", Japanese Journal of Applied Physics 29, L706 (1990).
M. Tanaka, J. Motohisa and H. Sakaki <Invited paper>, "MBE Growth and Electronic Properties of Planar Superlattices Consisting of Grid-Inserted Heterostructures", Proc. of SPIE's 1990 Symposium on Advances in Semiconductors and Superconductors: Physics Toward Device Applications, Quantum Well and Superlattice Physics III, SPIE Vol.1283, p254 (1990).
M. Tanaka, J. Motohisa and H. Sakaki, "Formation of In-Plane Superlattice and Quantum Wire States in Grid Inserted Heterostructures with Period of 80-160A: Anisotropy of Electronic States", Surface Science 228, 408 (1990).
T. Noda, M. Tanaka and H. Sakaki, "Correlation Length of Interface Roughness and Its Enhancement in MBE-Grown GaAs-AlAs Quantum Wells Studied by Mobility Measurement", Applied Physics Letters 57, 1651 (1990).
M. Tanaka, T. Suzuki and T. Nishinaga, "Surface Diffusion of Al and Ga Atoms on GaAs (001) and (111)B Vicinal Surfaces in Molecular Beam Epitaxy", J. Crystal Growth 111, 168 (1991).
T. Noda, M. Tanaka and H. Sakaki, "Characterization of Correlation Length of Interface Roughness in MBE-Grown GaAs-AlAs Quantum Wells Studied by Mobility Measurement", J. Crystal Growth 111, 348 (1991).
M. Tanaka, H. Sakakibara and T. Nishinaga, "Molecular Beam Epitaxial Growth and Characterization of CoAl/AlAs/GaAs Metal/Semiconductor Heterostructures", Appl. Phys. Lett. 59, 3115 (1991).
M. Tanaka, H. Sakakibara, T. Nishinaga, N. Ikarashi, K. Ishida, "Growth of AlAs/CoAl/AlAs Metal/Semiconductor Heterostructures by Molecular Beam Epitaxy", Surface Science 267, 38 (1992).
M. Tanaka, N. Ikarashi, H. Sakakibara, K. Ishida, T. Nishinaga, "Atomic-Scale Morphology and Interfaces of Epitaxially Embedded Metal(CoAl)/Semiconductor(GaAs/AlAs) Heterostructures", Appl. Phys. Lett. 60, 835 (1992).
M. Tanaka, T. Noda and H. Sakaki <Invited paper>, "Atomic-scale characterization and control of semiconductor interfaces grown by molecular beam epitaxy", Materials Science and Engineering B14, pp.304-310 (1992).
N. Ikarashi, M. Tanaka, H. Sakaki and K. Ishida, "High Resolution Electron Microscopy of Growth Interruption Effect on AlAs/GaAs Interfacial Structure during Molecular Beam Epitaxy", Appl. Phys. Lett. 60, 1360 (1992).
N. Ikarashi, M. Tanaka, T. Baba, H. Sakaki and K. Ishida, "High Resolution Transmission Electron Microscopy of AlAs/GaAs Interfacial Structure in the <110> Cross Section", Proc. 4th Conf. on Frontiers of Electron Microscopy in Materials Science.
X.Q. Shen, M. Tanaka, and T. Nishinaga, "Resharpening Effect of AlAs and Fabrication of Quantum Wires on V-Grooved Substrates by Molecular Beam Epitaxy", J. Crystal Growth 127, 932 (1993).
H. Sakaki, T. Noda, M. Tanaka, J. Motohisa, Y. Kadoya, N. Ikarashi, "Atomic-scale Understanding and Controllability of Heterointerfaces in Quantum Microstructures", in Physical Properties of Semiconductor Interfaces at Sub-nanometer Scale, edited by H.W.M. Salemink, NATO-ASI Series, Kluwer Academic Publishers, 1993.
N. Ikarashi, M. Tanaka, T. Baba, H. Sakaki, K. Ishida, "High-Resolution Transmission Electron Microscopy of AlAs/GaAs Interfacial Structure in the <110> Projection", Jpn. J. Appl. Phys. 32, 2824 (1993).
T. Nishinaga and M. Tanaka, "Behavior of Atomic Steps and Surface Diffusion of Al and Ga Atoms on GaAs Vicinal Substrates by Molecular Beam Epitaxy", New Functionality Materials, Vol. A, Optical and Quantum-Structural Properties of Semiconductors, pp.69-74, Elsevier Science Publisher. (1993).
M. Tanaka, T. Nishinaga, N. Ikarashi and H. Shimada, "Epitaxial CoAl/AlAs/GaAs Metal/Semiconductor Heterostructures: Growth, Structure and Electronic Properties", J. Appl. Phys. 75, 885 (1994).
X.Q. Shen, M. Tanaka, K. Wada and T. Nishinaga, "MBE Growth of GaAs, AlAs and GaAlAs on (001)-(111)B V-Grooved Substrates", J. Crystal Growth 135, 85 (1994).
J.P. Harbison, T. Sands, J. De Boeck, T. Cheeks, P. Miceli, M. Tanaka, L.T. Florez, B.J. Wilkens, G.L. Gilchrist, V.G. Keramidas, "MBE Growth of Ferromagnetic (Mn,Ni)Al Thin Films on AlAs/GaAs", J. Crystal Growth 127, 650 (1993).
T.L. Cheeks, M.J.S.P. Brasil, J. De Boeck, J.P. Harbison, T. Sands, M. Tanaka, A. Scherer, V.G. Keramidas, "Epitaxial t-(MnNi)Al/(AlGa)As Heterostructures: Magnetic and Magneto-Optic Properties", J. Appl. Phys. 73, 6121 (1993).
M. Tanaka, J.P. Harbison, T. Sands, J. De Boeck, B. Philips, T.L. Cheeks and V.G. Keramidas, "Epitaxial Growth of Ferromagnetic Ultrathin MnGa Films with Perpendicular Magnetization on GaAs", Appl. Phys. Lett. 62, 1565 (1993).
J. De Boeck, T. Sands, J.P. Harbison, A. Scherer, H. Gilchrist, T.L. Cheeks, M. Tanaka, V.G. Keramidas, "Non-volatile Memory Characteristics of Sub-micron Hall Structures Fabricated in Epitaxial Ferromagnetic MnAl Films on GaAs.", Electronics Letters 29, 421 (1993).
M. Tanaka, J.P. Harbison, T. Sands, B. Philips, T.L. Cheeks, J. De Boeck, L.T. Florez, V.G. Keramidas, "Epitaxial Ferromagnetic MnGa and MnNiGa with Perpendicular Magnetization on GaAs", Materials Research Society Symp. Proc. Vol.313, 507 (1993).
M. Tanaka, J.P. Harbison, T. Sands, B. Philips, T.L. Cheeks, J. De Boeck, L.T. Florez, V.G. Keramidas, "Epitaxial MnGa/NiGa Magnetic Multilayers on GaAs", Appl. Phys. Lett. 63, 696 (1993).
M. Tanaka, J.P. Harbison, T. Sands, B. Philips, T.L. Cheeks, J. De Boeck, L.T. Florez, V.G. Keramidas, "Epitaxial Ferromagnetic MnGa/NiGa Multilayers on GaAs", J. Magnetism & Magnetic Materials 126, 313 (1993).
M. Tanaka, J.P. Harbison, T. Sands, T.L. Cheeks, J. De Boeck, D. Hwang, L.T. Florez, V.G. Keramidas, "Epitaxial t-MnAl/NiAl Magnetic Multilayers on GaAs", Appl. Phys. Lett. 63, 839 (1993).
M. Tanaka, J.P. Harbison, T. Sands, J. De Boeck, T.L. Cheeks, V.G. Keramidas, "Magnetotransport Properties of Epitaxial Magnetic Superlattices of Mn-based Intermetallics on GaAs Heterostructures", Solid-State Electronics 37, 1031 (1994).
M. Tanaka, J.P. Harbison, T. Sands, T.L. Cheeks, G.M. Rothberg, "MBE Growth of MnAs Thin Films on GaAs", J. Vac. Science & Technology B12, 1091 (1994).
T.L. Cheeks, J.P. Harbison, M. Tanaka, T. Sands, V.G. Keramidas <Invited paper>, "Magnetic Properties of Epitaxial τMnAl/NiAl Magnetic Multilayers Grown on GaAs", J. Appl. Phys. 75, 6665 (1994).
M. Tanaka, J.P. Harbison and G.M. Rothberg, "Epitaxial Orientation and Magnetic Properties of MnAs Thin Films on (001) GaAs: Template Effects", Appl. Phys. Lett. 65, 1964 (1994).
M. Tanaka, J.P. Harbison, M.C. Park, Y.S. Park, T. Shin, G.M. Rothberg, "Epitaxial Ferromagnetic MnAs Thin Films Grown by MBE on GaAs: Structure and Magnetic Properties", J. Appl. Phys. 76, pp.6278-6780 (1994).
M. Tanaka <Invited paper>, "Epitaxial Ferromagnetic Thin Films and Multilayers of Mn-based Metallic Compounds on GaAs", J. Materials Science & Engineering B31, pp.117-122 (1995).
M. Tanaka, J.P. Harbison and G.M. Rothberg, "Epitaxial Ferromagnetic MnAs Thin Films on (001) GaAs: Template and Epitaxial Orientations", J. Crystal Growth 150, pp.1132-1138 (1995).
K. Akeura, M. Tanaka, M. Ueki and T. Nishinaga, "Epitaxial Ferromagnetic MnAs Thin Films Grown by Molecular Beam Epitaxy on Si(001) Substrates", Appl. Phys. Lett. 67, pp.3349-3351 (1995).
M. Tanaka, M. Tsuda, T. Nishinaga and C.J. Palmstrom, "Room Temperature Negative Differential Resistance in AlAs/ErAs/AlAs Heterostructures Grown on (001) GaAs", Appl. Phys. Lett. 68, pp.84-86 (1996).
S. Huang, Z.H. Ming, Y.L. Soo, Y.H. Kao, M. Tanaka, H. Munekata, "X-ray Scattering and Absorption Studies of MnAs/GaAs Heterostructures", J. Appl. Phys. 79, pp.1435-1440 (1996).
K. Akeura, M. Tanaka, T. Nishinaga, and J. De Boeck, "Epitaxial Growth and Magnetic Properties of MnAs Thin Films Directly Grown on Si (001)", J. Appl. Phys. 79, pp.4957-4959 (1996).
M.C. Park, Y. Park, T. Shin, G.M. Rothberg, M. Tanaka, J.P. Harbison, "Galvanomagnetic Properties and Magnetic Domain Structure of Epitaxial MnAs Thin Films on GaAs", J. Appl. Phys. 79, pp.4967-4969 (1996).
M. Tanaka, C.J. Palmstrom, M. Tsuda and T. Nishinaga, "Epitaxial Semimetal(ErAs)/Semiconductor(III-V) Heterostructures: Negative Differential Resistance in Novel Resonant Tunneling Structures Having a Semimetallic Quantum Well", J. Magnetism & Magnetic Materials 156, pp.276-278 (1996).
M. Tanaka, J.P. Harbison and G.M. Rothberg, "Epitaxial MnAs/NiAs Magnetic Multilayers on (001)GaAs Grown by Molecular Beam Epitaxy", J. Magnetism & Magnetic Materials 156, pp.306-308 (1996).
H.G. Ren, M. Tanaka, and T. Nishinaga, "Real Time Observation of Reconstruction Transitions on GaAs (111)B Surface by Scanning Electron Microscopy", Appl. Phys. Lett. 69, pp.565-567 (1996).
X.Q. Shen, H.W. Ren, M. Tanaka, T. Nishinaga, "Real-time Observations of Faceting and Shrinkage Processes of Disk-shaped Mesas in GaAs Molecular Beam Epitaxy on GaAs(111)B Substrates", J. Cryst. Growth 169, pp.607-612 (1996).
T. Shin, M.C. Park, Y. Park, G.M. Rothberg, J.P. Harbison, and M. Tanaka, "Magnetism of Epitaxial MnxNi1-xAs Films on GaAs(001)", Appl. Phys. Lett. 70, pp.258-260 (1997).
T. Hayashi, M. Tanaka, T. Nishinaga, H. Shimada, H. Tsuchiya and Y. Ootuka, "GaMnAs: New III-V Based Diluted Magnetic Semiconductor Grown by Molecular Beam Epitaxy", J. Crystal Growth 175/176, pp.1063-1068 (1997).
T. Hayashi, M. Tanaka, T. Nishinaga and H. Shimada, "Magnetic and Magnetotransport Properties of a New III-V Diluted Magnetic Semiconductor: GaMnAs", J. Appl. Phys. 81, pp.4865-4867 (1997).
T. Hayashi, M. Tanaka, K. Seto, T. Nishinaga, and K. Ando, "New III-V Based Magnetic(GaMnAs)/Nonmagnetic(AlAs) Semiconductor Superlattices", Appl. Phys. Lett. 71, pp.1825-1827 (1997).
T. Hayashi, M. Tanaka, K. Seto, T. Nishinaga, H. Shimada, and K. Ando, "Hall Effect and Magnetic Properties of III-V Based (Ga1-xMnx)As/AlAs Magnetic Semiconductor Superlattices", J. Appl. Phys. 83, pp.6551-6553 (1998).
K. Ando, T. Hayashi, M. Tanaka, A. Twardowski, "Magnetooptic Effect of Ferromagnetic Diluted Magnetic Semiconductor Ga1-xMnxAs", J. Appl. Phys. 83, pp.6548-6550 (1998).
R. Shioda, K. Ando, T. Hayashi, M. Tanaka, "Local Structures of III-V Diluted Magnetic Semiconductor GaMnAs Studied by Extended X-ray Absorption Fine Structure", Phys. Rev. B58, pp.1100-1102 (1998).
M. Tanaka <Invited paper>, "Epitaxial Ferromagnetic Thin Films and Heterostructures of Mn-based Metallic and Semiconducting Compounds on GaAs", Physica E2, pp.372-380 (1998).
T. Hayashi, M. Tanaka, K. Seto, T. Nishinaga, and H. Shimada, "Magnetotransport Properties of New III-V Based Magnetic(GaMnAs)/Nonmagnetic(AlAs) Semiconductor Superlattices", Physica E2, pp.404-407 (1998).
M. Tanaka <Invited paper>, "Epitaxial Growth and Properties of III-V Based Ferromagnetic Semiconductor (GaMn)As and Its Heterostructures", J. Vac. Sci. & Technol. B16, pp.2267-2274 (1998).
J. Okabayashi, A. Kimura, A. Fujimori, T. Hayashi, and M. Tanaka, "Core-level Photoemission of (Ga1-xMnx)As", Phys Rev. B58, pp.R4211-R4214 (1998).
K. Shimada, O. Rader, A. Fujimori, A. Kimura, N. Kamakura, A. Kakizaki, K. Ono, M. Tanaka, M. Shirai, "Spin and Angle-Resolved Photoemission Spectroscopy of Ferromagnetic MnAs", J. Electron Spectroscopy and Related Phenomena 88-91, pp.207-212 (1998).
M. Nakamura, M. Shuzo, K. Ono, H. Fujioka, M. Tanaka, T. Nishinaga, Y. Watanabe, M. Oshima, "The Evidence for a Preferential Growth of a MnAs Thin Film on an As-Preadsorbed Si(001) Surface", Applied Surface Science 130-132, pp.128-132 (1998).
T. Shin, M.C. Park, Y. Park, G.M. Rothberg, M. Tanaka, J.P. Harbison, "Electric Field Effects on Magnetic and Optical Properties of MnAs/GaAs(001) Thin Films", IEEE Transactions on Magnetics 34, pp.1042-1044 (1998).
M. Tanaka, K. Saito, and T. Nishinaga, "Epitaxial MnAs/GaAs/MnAs Trilayer Magnetic Heterostructures", Appl. Phys. Lett. 74, pp.64-66 (1999).
H. Shimizu, T. Hayashi, T. Nishinaga and M. Tanaka, "Magnetic and Transport Properties of III-V Based Magnetic Semiconductor (GaMn)As: Growth Condition Dependence", Appl. Phys. Lett. 74, pp.398-400 (1999).
H. Shimizu, T. Hayashi, T. Nishinaga and M. Tanaka, "Properties of III-V Based Ferromagnetic Semiconductor (Ga1-xMnx)As: As Pressure Dependence", J. Magn. Soc. Jpn. 23, pp.96-98 (1999).
K. Ono, T. Uragami, M. Mizuguchi, H. Fujioka, M. Oshima, M. Tanaka, H. Akinaga, Y. Watanabe, "Formation of Low-dimensional Structures of Manganese Pnictides", J. Magn. Soc. Jpn. 23, pp.688-690 (1999).
K. Ono, M. Mizuguchi, T. Uragami, T. Mano, H. Fujioka, M. Oshima, M. Tanaka, Y. Watanabe, "Formation of MnAs Dots on S-passivated GaAs(100) Substrates", J. Magn. Soc. Jpn. 23, pp.691-693 (1999).
T. Uragami, K. Ono, M. Mizuguchi, T. Mano, H. Fujioka, M. Oshima, M. Tanaka, Y. Watanabe, "Growth of MnAs on S and Se-passivated GaAs Substrates", J. Magn. Soc. Jpn. 23, pp.694-696 (1999).
J. Okabayashi, A. Kimura, T. Mizokawa, A. Fujimori, T. Hayashi, and M. Tanaka, "Mn 3d Partial Density of States in (GaMn)As Studied by Resonance Photoemission Spectroscopy", Phys Rev. B59, pp.R2486-R2489 (1999).
M. Tanaka, K. Saito, M. Goto, T. Nishinaga, "Epitaxial Growth and Properties of MnAs/GaAs/MnAs Trilayer Heterostructures", J. Magnetism & Magnetic Materials 198, pp. 719-721 (1999).
M. Tanaka, K. Abe, K. Tamura, H. Haruyama, T. Nishinaga, "Vertical Transport in Epitaxial Semimetal(ErAs)/Semiconductor(III-V) Quantum Heterostructures", J. Magnetism & Magnetic Materials 198, pp. 581-583 (1999).
M. Tanaka <Invited paper>, "Ferromagnet/Semiconductor Hybrid Structures Grown by Molecular Beam Epitaxy", J. Crystal Growth 201/202, pp.660-669 (1999).
T. Hayashi, H. Shimada, H. Shimizu, and M. Tanaka, "Tunneling Spectroscopy and Magnetoresistance in (GaMn)As/AlAs/(GaMn)As Ultrathin Magnetic Semiconductor Heterostructures", J. Crystal Growth, 201/202, pp.689-692 (1999).
M. Oshima, K. Ono, M. Mizuguchi, T. Uragami, H. Fujioka, M. Tanaka, and Y. Watanabe, "Photoelectron Spectroscopy and Magnetic Properties of Manganese Pnictides Nanocrystals Formed on Passivated GaAs Substrates", Jpn. J. Appl. Phys 38, Suppl.38-1, pp.373-376 (1999).
K. Shimada, O. Rader, A. Fujimori, A. Kimura, K. Ono, N. Kamakura, A. Kakizaki, M. Tanaka, M. Shirai, "Spin-Resolved Core-Level and Valence-Band Photoemission Spectroscopy of Ferromagnetic MnAs", J. Electron Spectroscopy and Related Phenomena 101-103, pp.383-387 (1999).
J. Szczytko, A. Twardowski, K. Swiatek, M. Palczewska, T. Hayashi, M. Tanaka, and K. Ando, "Mn Impurity in (GaMn)As Epilayers", Phys. Rev. B60, pp.8304-8308 (1999).
K. Ando, A. Chiba, H. Tanoue, F. Kirino, and M. Tanaka, "Formation of Ferromagnetic Submicron Particles of MnAs and MnGa on GaAs Substrates by Ion Implantation", IEEE Transactions on Magnetics 35, pp.3463-3465 (1999).
T. Hayashi, M. Tanaka, and A. Asamitsu, "Tunneling Magnetoresistance of a (GaMn)As Based Double Barrier Ferromagnetic Tunnel Junction", J. Appl. Phys. 87, pp.4673-4675 (2000).
M. Nazmul, H. Shimizu and M. Tanaka, "Magneto-optical Spectra of Epitaxial Ferromagnetic MnAs films Grown on Si and GaAs Substrates", J. Appl. Phys. 87, pp.6791-6793 (2000).
K. Takahashi and M. Tanaka, "Magnetotransport Properties of MnAs/GaAs/MnAs Ferromagnet/Semiconductor Trilayer Heterostructures", J. Appl. Phys. 87, pp.6695-6697 (2000).
M. Tanaka and M. Koto, "Vertical Transport and Large Negative Differential Resistance of Epitaxial GaAs/ErAs/GaAs Buried Semimetal/Semiconductor Heterostructures", Physica E7, pp.846-850 (2000).
M. Tanaka, H. Shimizu, T. Hayashi, H. Shimada, and K. Ando <Invited paper>, "Ferromagnetic Semiconductor Heterostructures Based on (GaMn)As", J. Vac. Sci. & Technol. A18, pp.1247-1253 (2000).
H. Shimizu, M. Miyamura, and M. Tanaka, "Enhanced Magneto-Optical Effect in a GaAs:MnAs Nanoscale Hybrid Structure Combined with GaAs/AlAs Distributed Bragg Reflectors", J. Vac. Sci. & Technol. B18, pp.2063-2065 (2000).
B. Grandidier, J.P. Nys, C. Delerue, D. Stievenard, Y. Higo, and M. Tanaka, "Atomic-Scale Study of GaMnAs/GaAs Layers", Appl. Phys. Lett. 77, pp.4001-4003 (2000).
H. Shimizu, M. Miyamura, and M. Tanaka, "Magneto-optical Properties of a GaAs:MnAs Hybrid Structure Sandwiched by GaAs/AlAs Distributed Bragg Reflectors: Enhanced Magneto-optical Effect and Theoretical Analysis", Appl. Phys. Lett. 78, pp.1523-1525 (2001).
Y. Higo, H. Shimizu, and M. Tanaka, "Anisotropic Tunneling Magnetoresistance in GaMnAs/AlAs/GaMnAs Ferromagnetic Semiconductor Tunnel Junctions", J. Appl. Phys. 89, pp. 6745-6747 (2001).
H. Shimizu and M. Tanaka, "Magneto-Optical Properties of Semiconductor-Based Superlattices having GaAs with MnAs Nanoclusters", J. Appl. Phys. 89, pp. 7281-7283 (2001).
S. Sugahara and M. Tanaka, "Atomic-Scale Surface Morphology of Epitaxial Ferromagnetic MnAs Thin Films on Vicinal GaAs(111)B Substrates", J. Appl. Phys. 89, pp. 6677-6679 (2001).
H. Saito, W. Zaets, Y. Mishima, M. Tanaka, R. Akimoto and K. Ando, "Magnetic and transport properties of a new III-V diluted magnetic semiconductor Ga1-xCrxAs", J. Appl. Phys. 89, pp.7392-7394 (2001).
Y. Higo, H. Shimizu, and M. Tanaka, "Large Tunneling Magnetoresistance (>70%) in GaMnAs/AlAs/GaMnAs Single-barrier Ferromagnetic Semiconductor Tunnel Junctions", Physica E10, pp.292-294 (2001).
J. Okabayashi, A. Kimura, O. Rader, T. Mizokawa, A. Fujimori, T. Hayashi, and M. Tanaka, "Electronic Structure of GaMnAs Studied by Angle-resolved Photoemission Spectroscopy", Physica E10, pp.192-195 (2001).
H. Shimizu, M. Miyamura, and M. Tanaka, "Magneto-optical effect in a Semiconductor-based Magnetic Microcavity", Proc. of the 25th International Conference on the Physics of Semiconductors, Osaka 2000 (Eds. N. Miura and T. Ando, Springer), pp.1711-1712 (2001).
J. Okabayashi, A. Kimura, O. Rader, T. Mizokawa, A. Fujimori, T. Hayashi, and M. Tanaka, "Electronic structure of Ga1-xMnxAs studied by photoemission spectroscopy", Proc. of the 25th International Conference on the Physics of Semiconductors, Osaka 2000 (Eds. N. Miura and T. Ando, Springer), pp.262-263 (2001).
M. Tanaka, H. Shimizu, and M. Miyamura <Invited paper>, "Enhancement of Magneto-optical Effect in a GaAs:MnAs Hybrid Structure Sandwiched by GaAs/AlAs Distributed Bragg Reflectors: Epitaxial Semiconductor-based Magneto-photonic Crystal", J. Cryst. Growth, 227/228, pp.839-846 (2001).
M. Tanaka and K. Takahashi, "Ferromagnet (MnAs)/semiconductor (GaAs, AlAs, InAs)/ferromagnet (MnAs) trilayer heterostructures: Epitaxial growth and magnetotransport properties", J. Cryst. Growth, 227/228, pp.847-851 (2001).
M. Tanaka and Y. Mishima, "Low Temperature Molecular Beam Epitaxy Growth and Properties of (Ga,Er)As", J. Cryst. Growth, 227/228, pp.857-861 (2001).
Ahsan M. Nazmul, A. G. Banshchikov, H. Shimizu, and M. Tanaka, "MBE growth process of ferromagnetic MnAs on Si(111) substrates", J. Cryst. Growth, 227/228, pp.874-881 (2001).
M. Tanaka and Y. Higo, "Large Tunneling Magnetoresistance in GaMnAs/AlAs/GaMnAs Ferromagnetic Semiconductor Tunnel Junctions", Phys. Rev. Lett. 87, pp.026602/1-4 (2001).
J. Okabayashi, A. Kimura, O. Rader, T. Mizokawa, A. Fujimori, T. Hayashi and M. Tanaka, "Angle-Resolved Photoemission Study of Ga1-xMnxAs", Phys. Rev. B64, pp.125304/1-4 (2001).
S. Ohya, H. Shimizu, Y. Higo, J. M. Sun and M. Tanaka, "Growth and properties of quaternary alloy magnetic semiconductor (InGaMn)As", Jpn. J. Appl. Phys. 41, L24-L27 (2002); http://arXiv.org/pdf/cond-mat/0111163 (2001).
A. M. Nazmul, S. Sugahara, and M. Tanaka, "Properties of Mn-delta-doped-GaAs-based Heterostructures and Their High Ferromagnetic Transition Temperature (〜172 K)", The papers of Technical Meeting on Magnetics, IEE Japan, MAG-02-31, pp.17-21, Research Institute of Electrical Communications, Tohoku University, March 14-15, 2002.
M. Tanaka, <Invited paper> "Semiconductor-Based Magnetic Heterostructures for Spin Electronics", Proc. of the 2002 Asia-Pacific Workshop on Fundamental and Application of Advanced Semiconductor Devices (AWAD2002), pp.271-276, paper ED2002-172, SDM2002-122, Sapporo, Japan, July 2002.
S. Sugahara and M. Tanaka, "Tunneling Magnetoresistance in Fully Epitaxial MnAs/AlAs/MnAs Ferromagnetic Tunnel Junctions Grown on Vicinal GaAs(111)B Substrates", Appl. Phys. Lett. 80, pp.1969-1971 (2002).
A.M. Nazmul, S. Sugahara, and M. Tanaka, "Transport Properties of Mn delta-doped GaAs and the effect of selective doping", Appl. Phys. Lett. 80, pp.3120-3122 (2002).
M. Tanaka <Invited paper>, "Ferromagnet (MnAs) / III-V Semiconductor Hybrid Structures", Special Issue on Semiconductor Spintronics, Semiconductor Science and Technology 17, No.4, pp. 327-341 (2002).
H. Shimizu and M. Tanaka, "Quantum size effect and ferromagnetic ordering in ultrathin GaMnAs/AlAs heterostructures", J. Appl. Phys. 91, pp.7487-7489 (2002).
M. Tanaka and Y. Higo <Invited paper>, "Tunneling magnetoresistance in GaMnAs/AlAs/GaMnAs ferromagnetic semiconductor heterostructures", Physica E13, pp.495-503 (2002).
S. Sugahara and M. Tanaka, "Growth Characteristics and Tunneling magnetoresistance of MnAs/AlAs/MnAs Trilayer Heterostructures Grown on Vicinal GaAs (111)B Substrates", Physica E13, pp.582-588 (2002).
H. Shimizu and M. Tanaka, "Magneto-optical properties of a Si-doped GaAs:MnAs based magneto-photonic crystal operating at 1.55 micron", Physica E13, pp.597-601 (2002).
A. M. Nazmul, S. Sugahara, and M. Tanaka, "Transport Properties and High Curie Temperature (172 K) of Mn-delta-doped GaAs with Selective p-type Doping", http://xxx.lanl.gov/pdf/cond-mat/0208299 (August 2002).
H. Shimizu and M. Tanaka, "Design of semiconductor-waveguide-type optical isolators using the non-reciprocal loss/gain in the magneto-optical waveguides having MnAs nanoclusters", Appl. Phys. Lett. 81, pp.5246-5248 (2002).
H. Shimizu and M. Tanaka, "Design of semiconductor-waveguide-type optical isolators using the non-reciprocal loss/gain in the magneto-optical waveguides having MnAs nanoclusters", Virtual Journal of Nanoscale Science & Technology, January 6, 2003; http://www.vjnano.org/
G. Mahieu, P. Condette, B. Grandidier, J.P. Nys, G. Allan, D. Stievenard, Ph. Evert, H. Shimizu and M. Tanaka, "Compensation Mechanisms in Low-temperature Grown GaMnAs Investigated by Scanning Tunneling Microscopy", Appl. Phys. Lett. 82, pp.712-714 (2003).
S. Sugahara and M. Tanaka, "Epitaxial Growth and Magnetic Properties of MnAs/AlAs/MnAs Magnetic Tunnel Junctions on Exact (111)B GaAs Substrates: the Effect of a Ultrathin GaAs Buffer Layer", J. Cryst. Growth 251, pp.317-322 (2003).
M. Nazmul, S. Sugahara, and M. Tanaka, "Structural and Transport Properties of Mn-delta-doped GaAs", J. Cryst. Growth 251, pp.303-310 (2003).
M. Tanaka <Invited paper>, "Spin-polarized Tunneling in Fully Epitaxial Semiconductor-based Magnetic Tunnel Junctions", Journal of Superconductivity; Incorporating Novel Magnetism 16, pp.241-248 (2003).
S. Ohya, H. Yamaguchi, and M. Tanaka, "Properties of Quaternary Alloy Magnetic Semiconductor (InGaMn)As Grown on InP", Journal of Superconductivity; Incorporating Novel Magnetism 16, pp.139-142 (2003).
A.M. Nazmul, S. Sugahara, and M. Tanaka, "Ferromagnetism and High Curie Temperature in Semiconductor Heterostructures with Mn-delta-doped GaAs and p-type Selective Doping", Phys. Rev. B67, pp.241308(R) 1-4 (2003).
A.M. Nazmul, S. Sugahara, and M. Tanaka, "Transport Properties and High Curie Temperature (172 K) of Mn-delta-doped GaAs with Selective p-type Doping", Proc. of 26th International Conference on the Physics of Semiconductors (ICPS-26), paper E4.2, Edinburgh UK, July 29 - August 2, 2002.
K. Ueda, H. Shimizu, and M. Tanaka, "Magneto-Optical Kerr Effect of Semiconductor-based Multilayer Structures Containing a GaAs:MnAs Granular Thin Film", Jpn. J. Appl. Phys. 42, L914-L917 (2003).
S. Ohya, H. Kobayashi, and M. Tanaka, “Magnetic properties of heavily Mn-doped quaternary alloy magnetic semiconductor (InGaMn)As grown on InP”, Appl. Phys. Lett. 83, pp.2175-2177 (2003).
J. Okabayashi, M. Mizuguchi, M. Oshima, H. Shimizu, M. Tanaka, M. Yuri, and C.T. Chen, "Electronic and magnetic properties of MnAs nanoclusters studied by x-ray absorption spectroscopy and x-ray magnetic circular dichroism", Appl. Phys. Lett. 83, pp.5485-5487 (2003).
A. M. Nazmul, S. Kobayashi, S. Sugahara and M. Tanaka, "Electrical and optical control of ferromagnetism in III-V semiconductor heterostructures at high temperature (~100 K)", Jpn. J. Appl. Phys. 43, pp.L233 - L236 (2004).
田中雅明、アーサ ン M. ナズムル、菅原聡「MnデルタドープGaAsを含む強磁性半導体ヘテロ構造：Tcの上昇と磁性制御」日本応用磁気学会誌 Vol. 28 No.2, pp. 66-71 (2004).
S. Sugahara and M. Tanaka, "A Spin-Filter Transistor and Its Applications", Physica E21, pp.996-1001 (2004).
M. Nazmul, S. Kobayashi, S. Sugahara, and M. Tanaka, "Control of Ferromagnetism in Mn Delta-doped GaAs-based Heterostructures", Physica E21, pp.937-942 (2004).
T. Ogawa, Y. Shuto, K. Ueda, and M. Tanaka, "Photo-induced anomalous Hall effect in GaAs:MnAs granular films", Physica E21, pp.1041-1045 (2004).
S. Ohya, H. Kobayashi, and M. Tanaka, "Magnetic Properties and Curie Temperature (~130K) of Heavily Mn-doped Quaternary Alloy Ferromagnetic Semiconductor (InGaMn)As Grown on InP", Physica E21, pp.975-977 (2004).
R. Nakane, S. Sugahara, and M. Tanaka, Epitaxial growth and magnetic properties of MnAs/NiAs/MnAs spin-valve trilayers on GaAs(001) substrates”, Physica E21, pp.991-995 (2004).
O. Rader, C. Pampuch, A. M. Shikin, W. Gudat, J. Okabayashi, T. Mizokawa, A. Fujimori, T. Hayashi, M. Tanaka, A. Tanaka, A. Kimura, "Resonant photoemission of Ga1-xMnxAs at the Mn L edge", Phys. Rev. B69, pp. 075202/1-7 (2004).
S. Sugahara and M. Tanaka, "A spin metal-oxide-semiconductor field-effect transistor using half-metallic-ferromagnet contacts for the source and drain", Appl. Phys. Lett. 84, pp.2307-2309 (2004).
S. Sugahara and M. Tanaka, "A spin metal-oxide-semiconductor field-effect transistor using half-metallic-ferromagnet contacts for the source and drain", Virtual Journal of Nanoscale Science & Technology, Volume 9, Issue 13, April 5, 2004.
R. Nakane, S. Sugahara and M. Tanaka, "The effect of post-growth annealing on the morphology and magnetic properties of MnAs thin films grown on GaAs(001) substrates", J. Appl. Phys. 95, pp.6558-6561 (2004)..
S. Sugahara and M. Tanaka, "Spin-filter transistor", Jpn. J. Appl. Phys. 43, L838-L841 (2004).
T. Matsuno, S. Sugahara and M. Tanaka, "Novel Reconfigurable Logic Gates Using Spin Metal-Oxide- Semiconductor Field-Effect Transistors", Jpn. J. Appl. Phys.,43, 6032-6037 (2004).
K. Eguchi, Y. Tanabe, T. Ogawa, M. Tanaka, Y. Kawabe, and E. Hanamura, "Second-harmonic generation from pyroelectric and ferrimagnetic GaFeO3", J. Optical Society of America B22, pp.128-137 (2005).
A. Fujimori, J. Okabayashi, Y. Takeda, T. Mizokawa, J. Okamoto, K. Mamiya, Y. Saitoh, Y. Muramatsu, M. Oshima, S. Ohya, and M. Tanaka, "Photoemission and Core-Level Magnetic Circular Dichroism Studies of Diluted Magnetic Semiconductors", J. Electron Spectroscopy and Related Phenomena 144-147, 701-705 (2005).
M. Tanaka , "Spintronics: Recent Progress and Tomorrow's Challenges", J. Crystal Growth 278, pp.25-37 (2005).
R. Nakane, J. Kondo, M. W. Yuan, S. Sugahara, and M. Tanaka, "Growth and magnetic properties of epitaxial metallic MnAs/NiAs/MnAs heterostructures grown on exact GaAs(111)B substrates", J. Crystal Growth 278, pp.649-654 (2005).
S. Sugahara and M. Tanaka, "A spin metal-oxide-semiconductor field-effect transistor (spin MOSFET) using a ferromagnetic semiconductor for the channel", J. Appl. Phys. 97, 10D503 (2005).
M. Yokoyama, H. Yamaguchi, T. Ogawa, and M. Tanaka, "Zinc-Blende-type MnAs nanoclusters embedded in GaAs", J. Appl. Phys. 97, 10D317 (2005) .
A. M. Nazmul, T. Amemiya, Y. Shuto, S. Sugahara, and M. Tanaka, "High Temperature Ferromagnetism in GaAs-based Heterostructures with Mn Delta Doping", Phys. Rev. Lett. 95, pp.17201 1-4 (2005).
A. M. Nazmul, T. Amemiya, Y. Shuto, S. Sugahara, and M. Tanaka, "High Temperature Ferromagnetism in GaAs-based Heterostructures with Mn Delta Doping", cond-mat/0503444 (2005 March); Virtual Journal of Nanoscale Science & Technology, Volume 12, Issue 2, July 11, 2005. http://www.vjnano.org.
S. Ohya, P-N. Hai, and M. Tanaka, "Tunneling magnetoresistance in GaMnAs / AlAs / InGaAs / AlAs / GaMnAs double-barrier magnetic tunnel junctions", Appl. Phys. Lett. 87, 012105 (2005).
S. Ohya, P-N. Hai, and M. Tanaka, "Tunneling magnetoresistance in GaMnAs / AlAs / InGaAs / AlAs / GaMnAs double-barrier magnetic tunnel junctions", Virtual Journal of Nanoscale Science & Technology, Volume 12, Issue 2, July 11, 2005. http://www.vjnano.org.
S. Sugahara, K.L. Lee, S. Yada, and M. Tanaka, "Precipitation of Amorphous Ferromagnetic Semiconductor Phase in Epitaxially Grown Mn-doped Ge Thin Film", Jpn. J. Appl. Phys. (Express Letter) Vol.44, pp.L1426 - L1429 (2005).
M. Yokoyama, S. Ohya, and M. Tanaka, "Growth and magnetic properties of epitaxial MnAs thin films grown on InP (001)", Appl. Phys. Lett. 88, 012504 (2006).
M. Yokoyama, T. Ogawa, A.M. Nazmul, and M. Tanaka, "Large magnetoresistance (> 600%) of a GaAs:MnAs granular thin film at room temperature", J. Appl. Phys. 99, 08D502 (2006).
Y. Shuto, M. Tanaka, and S. Sugahara, "Magneto-optical properties of a new group IV ferromagnetic semiconductor Ge1-xFex grown by molecular beam epitaxy", J. Appl. Phys. 99, 08D516 (2006). cond-mat/0511328
P.N. Hai, M. Yokoyama, S. Ohya, and M. Tanaka, "Spin polarized tunneling in III-V based heterostructures with a ferromagnetic MnAs thin film and GaAs:MnAs nanoclusters", Physica E32, pp.416-418 (2006).
T. Amemiya, H. Shimizu, Y. Nakano, P. N. Hai, M. Yokoyama, and M. Tanaka , "Semiconductor waveguide optical isolator based on nonreciprocal loss induced by ferromagnetic MnAs", Appl. Phys. Lett. 89, 021104 (2006).
S. Sugahara and M. Tanaka, "Spin metal-oxide-semiconductor field-effect transistors (spin MOSFETs) and their integrated circuit applications", ACM Transactions on Storage, Vol.2, No.2, pp.197-219 (2006).
K. Sugiura, R. Nakane, S. Sugahara, and M. Tanaka, "Schottky barrier height of ferromagnet/Si(001) junctions", Appl. Phys. Lett. 89, 072110/1-3 (2006).
R. Nakane, M. Tanaka, and S. Sugahara, "Preparation and characterization of ferromagnetic DO3-phase Fe3Si thin films on silicon-on-insulator substrates for Si-based spin-electronic device applications", Appl. Phys. Lett. 89, pp.192503/1-3 (2006).
Pham Nam Hai, M. Yokoyama, S. Ohya, and M. Tanaka, "Tunneling magnetoresistance of MnAs thin film / GaAs / AlAs / GaAs:MnAs nanoclusters and its AlAs barrier thickness dependence", Appl. Phys. Lett. 89, 242106 (2006).
S. Ohya, K. Ohno, and M. Tanaka, "Magneto-optical and magnetotransport properties of heavily Mn-doped GaMnAs" cond-mat/0612055
Pham Nam Hai, M. Yokoyama, S. Ohya, and M. Tanaka, "Tunneling
magnetoresistance of MnAs thin film / GaAs / AlAs / GaAs:MnAs nanoclusters
and its AlAs barrier thickness dependence", Virtual Journal of Nanoscale Science & Technology, Volume 14, Issue 26 (2006).
S. Ohya, P. N. Hai, Y. Mizuno, and M. Tanaka, "Quantum-size effect and tunneling magnetoresistance in GaMnAs quantum-well heterostructures"physica status solidi (c) 3, pp.4184-4187 (2006).
Y. Shuto, M. Tanaka, and S. Sugahara, "Structural and magnetic properties of ferromagnetic semiconductor Ge1-xFex thin films grown by LT-MBE"physica status solidi (c) 3, pp.4110-4114 (2006).
T. Amemiya, H. Shimizu, P. N. Hai, M. Yokoyama, M. Tanaka, and Y. Nakano
"Waveguide-based 1.5-micron optical isolator based on magneto-optical characterizations of ferromagnetic MnAs",
Jpn. J. Appl. Phys. 46, pp.205-210 (2007).
S. Ohya, K. Ohno, and M. Tanaka,
"Magneto-optical and magnetotransport properties of heavily Mn-doped GaMnAs"
Appl. Phys. Lett. 90, pp.112503/1-3 (2007).
cond-mat/0612055
P. N. Hai, K. Takahashi, M. Yokoyama, S. Ohya, and M. Tanaka
"Magnetic properties of MnAs nanoclusters embedded in a GaAs semiconductor matrix"
J. Magn. Magn. Mater. 310, pp.1932-1934 (2007).
T. Amemiya, H. Shimizu, P. N. Hai, M. Yokoyama, M. Tanaka, and Y. Nakano
"Nonreciprocal propagation of light without external magnetic fields in a semiconductor waveguide isolator"
J. Magn. Magn. Mater. 310, pp.2161-2163 (2007).
K. Sugiura, R. Nakane, S. Sugahara, and M. Tanaka
"Schottky barrier MOSFETs with epitaxial ferromagnetic MnAs/Si(001) source and drain: Postgrowth annealing and transport characteristics"
J. Crystal Growth 301/302, pp.611-614 (2007).
M. Yokoyama, S. Ohya, and M. Tanaka
"Molecular beam epitaxy growth and properties of MnAs thin films epitaxially grown on InP(001)"
J. Crystal Growth 301/302, pp.615-618 (2007).
M. Yokoyama, S. Ohya, and M. Tanaka
"Fabrication, magnetic properties, and device application of InAlAs:MnAs granular material"
J. Crystal Growth 301/302, pp.627-630 (2007).
Y. Shuto, M. Tanaka, and S. Sugahara
"Structural and magnetic properties of epitaxially grown Ge1-xFex thin films: Fe concentration dependence"
Appl. Phys. Lett. 90, pp.132512/1-3 (2007).
Y. Mizuno, S. Ohya, P-N. Hai, and M. Tanaka
"Spin-dependent transport properties in GaMnAs-based spin hot-carrier transistors"
Appl. Phys. Lett. 90, pp.162505/1-3 (2007).
cond-mat/0702239
Y. Mizuno, S. Ohya, P-N. Hai, and M. Tanaka
"Spin-dependent transport properties in GaMnAs-based spin hot-carrier transistors"
Virtual Journal of Nanoscale Science & Technology Volume 15, Issue 17, April 30, 2007.
http://www.vjnano.org/nano/
S. Ohya, P. N. Hai, Y. Mizuno, and M. Tanaka,
"Quantum-size effect and tunneling magnetoresistance in ferromagnetic-semiconductor quantum heterostructures"
Phys. Rev. B75, pp.155328/1-6 (2007).
S. Ohya, P. N. Hai, Y. Mizuno, and M. Tanaka,
"Quantum-size effect and tunneling magnetoresistance in ferromagnetic-semiconductor quantum heterostructures"
Virtual Journal of Nanoscale Science & Technology Volume 15, Issue 18, May 7, 2007.
http://www.vjnano.org/nano/
M. Tanaka and S. Sugahara
"Metal-Oxide-Semiconductor Based Spin Devices for Reconfigurable Logic"
Invited paper in the Special Issue on Spintronics, IEEE Transactions on Electron Devices Vol. 54, No.5, pp.961-976 (2007).
S. Ohya and M. Tanaka (Invited review)
"TMR in Semiconductors"
Handbook of Magnetism and Advanced Magnetic Materials, Vol. 5 Spintronics and Magnetoelectronics
edited by Helmut Kronmuller and Stuart Parkin, John Wiley & Sons Ltd. (Chichester, UK), 3064 pages, July 2007.
Handbook of Magnetism and Advanced Magnetic Materials, 5 Volume-Set.
ISBN : 0470022175or_9780470022177
R. Nakane, J. Kondo, and M. Tanaka
"Tunneling magnetoresistance in a Mn delta-doped GaAs / AlAs / MnAs heterostructure"
Jpn. J. Appl. Phys. 46, pp.L755 - L757 (2007).
K. Ohno, S. Ohya, and M. Tanaka
"Properties of heavily Mn-doped GaMnAs with Curie temperature of 172.5 K"
Journal of Superconductivity and Novel Magnetism 20, pp.417-420 (2007).
T. Amemiya, H. Shimizu, M. Yokoyama, P. N. Hai, M. Tanaka, and Y. Nakano
"1.54-μm TM-mode waveguide optical isolator based on nonreciprocal-loss phenomenon: device design to reduce insertion loss"
Applied Optics 46, pp.5784-5791 (2007).
Pham Nam Hai, S. Sugahara and M. Tanaka
"Reconfigurable Logic Gates Using Single Electron Spin Transistors"
Jpn. J. Appl. Phys. 46, pp.6579-6585 (2007).
http://arxiv.org/abs/0707.1922
A.M. Nazmul, H.T. Lin, S.N. Tran, S. Ohya, and M. Tanaka,
"Planar Hall effect and uniaxial in-plane magnetic anisotropy in a Mn delta-doped GaAs/p-AlGaAs heterostructure"
Phys. Rev. B77, pp.155203/1-8 (2008).
A.M. Nazmul, H.T. Lin, S.N. Tran, S. Ohya, and M. Tanaka,
"Planar Hall effect and uniaxial in-plane magnetic anisotropy in a Mn delta-doped GaAs/p-AlGaAs heterostructure"
Virtual Journal of Nanoscale Science & Technology, Volume 17, Issue 15, April 14, 2008.
http://scitation.aip.org/dbt/dbt.jsp?KEY=VIRT01&Volume=CURVOL&Issue=CURISS
Y. Takeda, M. Kobayashi, T. Okane, T. Ohkochi, J. Okamoto, Y. Saitoh, K. Kobayashi, H. Yamagami, A. Fujimori, A. Tanaka, J. Okabayashi, M. Oshima, S. Ohya, P.N. Hai, M. Tanaka
"Nature of magnetic coupling between Mn ions in as-grown Ga1-xMnxAs studied by x-ray magnetic circular dichroism"
Phys. Rev. Lett. 100, 247202 (2008).
Pham Nam Hai, Yusuke Sakata, Masafumi Yokoyama, Shinobu Ohya, and Masaaki Tanaka
"Spin valve effect by ballistic transport in ferromagnetic metal(MnAs) / semiconductor (GaAs) hybrid heterostructures"
Phys. Rev. B 77, 214435/1-6 (2008).
http://arxiv.org/abs/0708.1681
M. Yokoyama, S. Ohya, and M. Tanaka
"Magnetic Anisotropy of Ferromagnetic Semiconductor [(InyGa1-y)1-xMnx]As Thin Films"
physica status solidi (c) 5, pp.2901-2903 (2008).
A. M. Nazmul, H. T. Lin, S. Ohya, and M. Tanaka
"Planar Hall Effect and Magnetic Anisotropy in a Mn delta-doped GaAs/p-AlGaAs Heterostructure"
IEEJ Transactions on Electrical and Electronic Engineering, 3, pp.394-398 (2008).
Y. Shuto, M. Tanaka, and S. Sugahara
"Epitaxial growth of ferromagnetic semiconductor Ge1-xFex thin films on Si(001) substrates"
Jpn. J. Appl. Phys. 47, pp.7108-7112 (2008).
S. Yada, M. Tanaka,and S. Sugahara
"Magneto-optical and magneto-transport properties of amorphous ferromagnetic semiconductor Ge1-xMnx thin films"
Appl. Phys. Lett. 93,193108/1-3 (2008).
M. Yokoyama, S. Ohya, and M. Tanaka
"Strong In-plane Uniaxial Magnetic Anisotropy of [(InyGa1-y)1-xMnx]As Characterized by Planar Hall Effect"
Jpn. J. Appl. Phys. 48, 023001/1-4 (2009).
M. Tanaka, M. Yokoyama, P-N. Hai, and S. Ohya (Invited review paper)
"Properties and functionalities of MnAs/III-V hybrid and composite structures"
in Spintronics, Semiconductors and Semimetals, Vol. 82,
edited by T. Dietl, D. D. Awschalom, M. Kaminska, and H. Ohno (Academic Press, New York, November 2008).
500 pages, ISBN-13: 978-0-08-044956-2, ISBN-10: 0-08-044956-5
Pham Nam Hai, Shinobu Ohya, Masaaki Tanaka, Stewart E.Barnes, Sadamichi Maekawa
"Electromotive force and huge magnetoresistance in magnetic tunnel junctions"
Nature 458, pp.489-492 (2009).
Online published on March 8, 2009, doi: 10.1038/nature07879
http://www.nature.com/nature/journal/vaop/ncurrent/abs/nature07879.html
S. Nakagawa, M. Yokoyama, O. Ichikawa, M. Hata, M. Tanaka, M. Takenaka, S. Takagi
"Investigation of InAlAs oxide/InP metal-oxide-semiconductor structures formed by wet thermal oxidation"
Jpn. J. Appl. Phys. 48, 04C093/1-4 (2009).
Shinobu Ohya, Iriya Muneta, Pham Nam Hai, and Masaaki Tanaka
"GaMnAs-based magnetic tunnel junctions with an AlMnAs barrier"
Appl. Phys. Lett. 95, 242503/1-3 (2009).
http://arxiv.org/abs/0912.3045 (Dec 2009).
Shinobu Ohya, Iriya Muneta, Pham Nam Hai, and Masaaki Tanaka
"GaMnAs-based magnetic tunnel junctions with an AlMnAs barrier"
Virtual Journal of Nanoscale Science & Technology 21,No.1,(2010).
http://www.vjnano.org/getabs/servlet/GetabsServlet?prog=normal&id=VIRT01000021000001000033000001&idtype=cvips&gifs=Yes&ref=no
Yusuke Shuto, Ryosho Nakane, Wenhong Wang, Hiroaki Sukegawa, Shuu’ichirou Yamamoto, Masaaki Tanaka, Koichiro Inomata, and Satoshi Sugahara
"A new spin-functional MOSFET based on magnetic tunnel junction technology: pseudo-spin-MOSFET"
Applied Physics Express 3, pp.013003/1-3 (2010).
http://arxiv.org/abs/0912.0835 (Dec 2009).
Shinobu Ohya, Iriya Muneta, and Masaaki Tanaka
"Quantum-level control in a III-V-based ferromagnetic-semiconductor heterostructure with a GaMnAs quantum well and double barriers"
Appl. Phys. Lett. 96, 052505/1-3 (2010).
Shinobu Ohya, Iriya Muneta, and Masaaki Tanaka
"Quantum-level control in a III-V-based ferromagnetic-semiconductor heterostructure with a GaMnAs quantum well and double barriers"
Virtual Journal of Nanoscale Science & Technology, Volume 21, Issue 7, February 15, 2010.
http://www.vjnano.org/getabs/servlet/GetabsServlet?prog=normal&id=VIRT01000021000007000024000001&idtype=cvips&gifs=Yes&ref=no
Shinobu Ohya, Iriya Muneta, Pham Nam Hai, and Masaaki Tanaka
"Valence-Band Structure of the Ferromagnetic Semiconductor GaMnAs Studied by Spin-Dependent Resonant Tunneling Spectroscopy"
Phys. Rev. Lett. 104, 167204 (2010).
Shinobu Ohya, Iriya Muneta, Pham Nam Hai, and Masaaki Tanaka
"Valence-Band Structure of Ferromagnetic-Semiconductor GaMnAs Studied by Spin-Dependent Resonant Tunneling Spectroscopy"
Virtual Journal of Nanoscale Science & Technology, Volume 21, Issue 18, May 3, 2010.
http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=VIRT01000021000018000024000001&idtype=cvips&gifs=yes&ref=no
Pham Nam Hai, Shinobu Ohya, and Masaaki Tanaka
"Long spin-relaxation time in a single metal nanoparticle"
Nature Nanotechnology 5, pp.593-596 (2010).
published online on July 4, 2010. (DOI 10.1038/NNANO.2010.130.)
R. Nakane, T. Harada, K. Sugiura, S. Sugahara, and M. Tanaka
"Spin-dependent transport of spin MOSFETs with ferromagnetic MnAs source and drain contacts: Spin injection and transport in a Si MOS channel"
Jpn. J. Appl. Phys. 49, pp.113001/1-3 (2010).
cond-mat arXiv:1002.0057
Shinsuke Yada, Ryohei Okazaki, Shinobu Ohya, and Masaaki Tanaka
"Single-Crystalline Ferromagnetic Alloy Semiconductor Ge1-xMnx Grown on Ge (111)"
Applied Physics Express 3, pp.123002/1-3 (2010).
Shinobu Ohya, Kenta Takata, and Masaaki Tanaka
"Nearly non-magnetic valence band of the ferromagnetic semiconductor GaMnAs"
cond-mat arXiv:1009.2235.
Nature Physics DOI 10.1038 / NPHYS1905, (2011).
田中雅明 "第９回結晶成長国際会議 Topical Symposium 'Atomic Processes of the Growth on the Stepped Surfaces' 報告"、結晶成長学会誌 第16巻3&4合併号 (1989年)32-8g．
田中雅明 "エピタキシャル強磁性金属／半導体構造の成長・構造・機能" 日本応用磁気学会誌 Vol.20, No.6 pp.950-959 (1996)．（M. Tanaka, "Structures, Properties, and Functions of Epitaxial Ferromagnetic Metal / Semiconductor Heterotructures", J. Magnetics Society of Japan Vol.20, No.6, pp.950-959 (1996).）
田中雅明 "半導体と不揮発性磁気メモリのハイブリッド化" オプトロニクス1998年3月号 pp. 123-128.（Masaaki Tanaka, "Hybridization of Nonvolatile Magnetic Memory with Semiconductors", Optronics 1998-No.3, pp.123-128 (1998)）.
田中 雅明、林稔晶、清水大雅、斎藤要、高橋和彦 "磁性半導体および磁性体/半導体ヘテロ構造のエピタキシャル成長と物性"、日本応用磁気学会第109回研究会「半導体スピンエレクトロニクス －エレクトロニクスデバイスへの新提案－」Vol.109-3, pp.13-20, 東京商工会館、1999年3月18日.（M. Tanaka, T. Hayashi, H. Shimizu, K. Saito, and K. Takahashi, "Epitaxial Growth and Properties of III-V Based Magnetic Semiconductor, and Ferromagnet/Semiconductor Heterostructures", Proc. of the 109th Topical Meeting of Magnetics Society of Japan, March 1999, Tokyo.）
尾嶋正治、小野寛太、水口将輝、藤岡洋、田中雅明、秋永広幸 "半導体表面への磁性ナノ構造の成長と物性" 日本応用磁気学会誌 Vol.24, No.2, pp.67-73 (2000).（M. Oshima, K. Ono, M. Mizuguchi, H. Fujioka, M. Tanaka, H. Akinaga, "Growth and Properties of Magnetic Nanostructures on Semiconductor Surfaces", J. Magnetic Society of Japan Vol.24, No.2, pp.67-73 (2000).）
田中雅明 「半導体スピン機能素子技術の現状と展望」FEDジャーナル Vol.11, No.3, pp.67-75 (2000).（M. Tanaka, "Semiconductor Spintronic Materials and Devices: Current Status and Future Prospects", Future Electron Device Journal, Vol.11, No.3, pp.67-75 (2000).）
田中雅明 "半導体スピンエレトロニクス" 日本応用磁気学会第121回研究会「スピンエレクトロニクスの現状と将来展望」研究会資料121-2, pp.5-10 (2001). 東京・機械振興会館、2001年10月23日. （M. Tanaka, "Semiconductor Spin Electronics", Record of the 121st Topical Symposium of the Magnetics Society of Japan 'Current Status and Future Prospects of Spin Electronics', No.121-2, pp.5-10 (2001), Tokyo, October 23, 2001.）
M. Tanaka (Invited paper), "Ferromagnet (MnAs) / III-V Semiconductor Hybrid Structures", Special Issue on Semiconductor Spintronics, Semiconductor Science and Technology 17, No.4, pp. 327-341 (2002).
田中雅明 「スピンエレクトロニクス 半導体と磁性体の一体化に挑む 原子レベルのものづくりで新領域」Science and Technology Journal, 2002年5月号, pp.22-23.（M. Tanaka, "Ferromagnet/Semiconductor Hybrid Materials and Spin-Electronics", Science and Technology Journal, May 2002, pp.22-23 (2002).）
M. Tanaka, "A New Spin on Semiconductors -New Technology-", Look Japan Vol.48, pp.28-29, December 2002. University of Tokyo associate professor Tanaka Masaaki describes the revolutionary advances his lab has made in spin electronics research.
田中雅明 「強磁性半導体ヘテロ接合におけるトンネル磁気抵抗」 固体物理 Vol.37 (11), pp. 853-860 (2002).（M. Tanaka, "Tunneling Magnetoresistance in Ferromagnetic Semiconductor Heterostructures", Solid State Physics Vol.37 (11), pp. 853-860 (2002).）
菅原聡「スピントランジスタ」電子情報通信学会誌 Vol.88, No.7, pp.541-550 (2005)； S. Sugahara "Spin Transistors for Integrated Spin-electronics", Journal of the Institute of Electronics, Information and Communication Engineers (IEICE), Vol.88, No.7, pp.541-550 (2005).
Proceedings of the 4th International Conference on the Physics and Applications of Spin-related Phenomena in Semiconductors,
Special Issure of physica status solidi, 2007, Wiley VCH
Edited by M. Tanaka, K.M. Itoh, S. Katsumoto, M. Shirai, and H. Munekata
大矢忍、ファムナムハイ、田中雅明
"強磁性半導体量子へテロ構造におけるスピン依存共鳴トンネル効果"
第159回日本磁気学会研究会、第20回スピンエレクトロニクス専門研究会「半導体のスピン機能とデバイス応用」pp.25-29, 2008年3月3日．
S. Ohya, Pham Nam Hai, and M. Tanaka
"Spin-dependent resonant tunneling effect in ferromagnetic-semiconductor quantum heterostructures"
Proceedings of the Symposium on Spin-related Functions in Semiconductors and their Device Applications, Magnetics Society of Japan, pp.25-29, March 3rd, 2007.
結晶成長用語辞典 共著 共立出版編 （1999年発行）.（M. Tanaka, "Dictionary of Crystal Growth" edited by I. Sunagawa, Japanese Association of Crystal Growth, Kyoritsu Shuppan, Tokyo.）
田中雅明 「電気工学ハンドブック（第６版）」A3編12章「磁気的性質」電気学会編（2001年2月発行）（M. Tanaka, Chapter A3-12, 'Magnetic Properties' in "Handbook of Electrical Engineering", Institute of Electrical Engineers of Japan, Tokyo, ISBN4-88686-012-5 C3054, pp.116-119 (2001). ）
Proceedings of the Eleventh International Conference on Modulated Semiconductor Structures (MSS11), Elsevier, Physica E Vol. 21 No.2-4 (2004), edited by Y. Arakawa, H. Ohno, K. Hirakawa, and M. Tanaka.
S. Ohya and M. Tanaka, "TMR in Semiconductors", Handbook of Magnetism and Advanced Magnetic Materials, Vol. 5 Spintronics and Magnetoelectronics, edited by Helmut Kronmuller and Stuart Parkin, John Wiley & Sons Ltd. (Chichester, UK), in press.
S. Ohya and M. Tanaka
"TMR in Semiconductors"
Handbook of Magnetism and Advanced Magnetic Materials, Vol. 5 Spintronics and Magnetoelectronics
edited by Helmut Kronmuller and Stuart Parkin, John Wiley & Sons Ltd. (Chichester, UK), 3064 pages, July 2007. ISBN : 0470022175or_9780470022177.
Masaaki Tanaka, Masafumi Yokoyama, Pham Nam Hai, and Shinobu Ohya
"Properties and Functionalities of MnAs/III-V Hybrid and Composite Structures"
Chapter 11 in Semiconductors and Semimetals, Volume 82, Elsevier, 2008.
田中雅明
"強磁性半導体へテロ構造 －スピン依存トンネル現象を中心に－"
『スピントロニクスの基礎と材料・応用技術の最前線（仮）』 ＣＭＣ出版 (2009年6月30日発行)
Masaaki Tanaka
"Ferromagnetic Semiconductor Heterostructures －Spin Dependent Tunneling"
Frontiers of Spintronics, Basics, Materials and Applications, CMC Books, (published on June 30, 2009).
Invited Talks at International Conferences & Meetings
H. Sakaki, M. Tanaka and M. Tsuchiya <Invited talk>, "One-Atomic-Layer Heterointerface Roughness and Its Elimination in MBE-Grown GaAs-AlAs and GaAs-AlGaAs Quantum Well Structures and Devices Prepared with Interrupted Deposition", 2nd International Conference on Superlattices, Microstructures, and Microdevices, Goteborg, Sweden, 1986 August.
H. Sakaki, M. Tanaka and T. Noda, <Invited talk>, "Interface Roughness and Corrugation in Quantum Heterostructures", International Conference on Defect Control in Semiconductors, Yokohama, Japan, 1989 September.
M. Tanaka, J. Motohisa and H. Sakaki <Invited talk>, "MBE Growth and Electronic Properties of Planar Superlattices", SPIE's 1990 Symposium on Advances in Semiconductors and Superconductors: Physics toward Device Applications, San Diego, USA, 1990 March.
M. Tanaka <Invited talk>, "Atomic-scale characterization and control of semiconductor interfaces grown by molecular beam epitaxy", Proc. of the Workshop on "Epitaxy, defects, interfaces and processing of electronic and photonic materials", Pittsburgh, U.S.A., 1991 November.
T.L. Cheeks, J.P. Harbison, M. Tanaka, T. Sands, V.G. Keramidas, "Magnetic Properties of Epitaxial τMnAl/NiAl Magnetic Multilayers Grown on GaAs", <Invited talk> 38th Annual Conference on Magnetism and Magnetic Materials, 1993 Nov., Minneapolis.
Masaaki Tanaka <Invited talk>, "Epitaxial Ferromagnetic Thin Films and Multilayers of Mn-based Metallic Compounds on GaAs", 5th NEC Symposium on Fundamental Approaches to New Material Phases 'Spin-Dependent Phenomena in Multilayer Systems', Karuizawa, October 1994.
Masaaki Tanaka <Invited talk>, "Epitaxial Ferromagnetic Thin Films and Heterostructures on GaAs", Materials Research Society 1994 Fall Meeting, Boston, U.S.A., 1994 November.
Masaaki Tanaka <Invited talk>, "Epitaxial Magnetic and Nonmagnetic Metallic Compounds Integrated with III-V Semiconductors", American Physical Society 1996 March Meeting, St. Louis, March 1996.
M. Tanaka <Invited talk>, "Epitaxial Ferromagnetic Compounds Integrated with III-V Semiconductors", 8th Int. Conf. on Modulated Semiconductor Structures, Santa Barbara, U.S.A., July 1997.
M. Tanaka <Invited talk>, "Growth and Magnetic Properties of GaMnAs and Related Heterostructures", Japanese-Polish Symposium on Diluted Magnetic Semiconductors, pp.57-60, Warsaw, Poland, September 1997.
M. Tanaka <Invited talk>, "Magnetic compound/Compound Semiconductor Heterostructures", 25th Conference on the Physics and Chemistry of Semiconductor Interfaces (PCSI-25), Salt Lake City, USA, January, 1998.
M. Tanaka <Invited talk>, "Epitaxial Ferromagnet/Semiconductor Hybrid Structures", 10th Int. Conf. on Molecular Beam Epitaxy, Cannes, France, September 1998.
M. Tanaka <Invited talk>, "Epitaxial MnAs/GaAs/MnAs Ferromagnet/Semiconductor Heterostructures", Advanced Heterostructure Workshop '98, Hawaii, December 1998.
M. Tanaka <Invited talk>, "Epitaxial Ferromagnet/Semiconductor Heterostructures", Materials Research Society 1999 Spring Meeting, San Francisco, April 1999.
M. Tanaka <Invited talk>, "Ferromagnetic Semiconductor Heterostructures Based on (GaMn)As", American Vacuum Society 46th International Symposium, Seattle, October 25-29, 1999.
M. Tanaka, M. Miyamura, and H. Shimizu <Invited talk>, "Enhancement of magneto-optical effect in a GaAs:MnAs hybrid structure sandwiched by GaAs/AlAs distributed Bragg reflectors", 11th International Conference on Molecular Beam Epitaxy, Mo4.1, Beijing, September 10-15, 2000.
M. Tanaka <Invited talk>, "Epitaxial III-V Based Magnetic Heterostructures", Advanced Heterostructure Workshop 2000, Hawaii Big Island, December 3-8, 2000.
M. Oshima, K. Ono, M. Mizuguchi, T. Uragami, H. Fujioka, H. Ofuchi, M. Tanaka and H. Akinaga, <Invited talk> "Surface Chemistry and Growth Process of Magnetic Nanocrystals Studied by Synchrotron Radiation ", The 2000 International Chemical Congress of Pacific Basin Societies (Pacifichem 2000), Session 166 'The Chemistry of Inorganic Thin Film Formation', Honolulu, December 14 - 19, 2000.
M. Tanaka <Invited talk>, "Formation and Magneto-Optical Properties of Semiconductor-Based Magneto-Photonic Multilayers", The 2000 International Chemical Congress of Pacific Basin Societies (Pacifichem 2000), Session 166 'The Chemistry of Inorganic Thin Film Formation', Honolulu, Hawaii, December 14 - 19, 2000.
M. Tanaka <Invited talk>, "Semiconductor Spintronic Materials and Devices: Current Status and Future Prospects", 2001 International Seminar at the Research Center for Interface Quantum Electronics, Hokkaido University, January 31- February 1, 2001.
H. Shimizu* and M. Tanaka (*Invited young scientist's presentation), "Enhanced magneto-optical effect in III-V semiconductor-based magneto-photonic crystals", Proc. of the 6th Int. Symp. on Advanced Physical Fields, Growth of Well-defined Nanostructures, Tsukuba, March 6-9, 2001.
M. Tanaka <Invited talk>, "Semiconductor Based Epitaxial Magnetic Heterostructures", 5th RIKEN International Conference on Coherent Control in Matter, Shonan International Village, April 22-25, 2001.
M. Tanaka <Invited talk>, "Epitaxial Magnetic Heterostructures Based on Semiconductors", International Workshop on Quantum Transport in Synthetic Metals & Quantum Functional Semiconductors (QTSM & QFS 2001), Seoul, Korea, May 8-11, 2001.
M. Tanaka <Invited talk>, "Semiconductor-Based Epitaxial Magnetic Heterostructures", International Conference on Materials for Advanced Technologies (ICMAT-2001), Symposium on Advanced Data Storage Materials, Singapore, July 1-6, 2001.
M. Tanaka <Invited talk>, "III-V Based Magnetic Heterostructures for Spintronics", 10th Int. Conf. on Modulated Semiconductor Structures (MSS-10), paper ThE3, Linz, Austria, July 23-27, 2001.
M. Tanaka <Invited talk>, "III-V Based Epitaxial Magnetic Heterostructures", 15th International Vacuum Congress/ American Vacuum Society Meeting 48th International Symposium, San Francisco, October 29 - November 2, 2001.
M. Tanaka <Invited talk>, "Magnetic Heterostructures and Nanostructures for Spin Electronics", Int. Symp. on Artificial and Natural Nanostructures (ANN01), Rome, Italy, December 10-12, 2001.
M. Tanaka <Invited talk>, "Spin-dependent Transport and Tunneling in III-V Based Magnetic Heterostructures", The 8th IUMRS International Conference on Electronic Materials (IUMRS-ICEM2002), Xi-an, China, June 10-14, 2002.
M. Tanaka <Invited talk>, "Semiconductor-Based Magnetic Heterostructures for Spin Electronics", 2002 Asia-Pacific Workshop on Fundamental and Application of Advanced Semiconductor Devices (AWAD-2002), July 1-3, 2002 Hokkaido University, Sapporo, Japan
M. Tanaka <Invited talk>, "Spin-polarized Tunneling in Fully Epitaxial Semiconductor-based Magnetic Tunnel Junctions", 2nd International Conference on the Physics and Application of Spin-related Phenomena in Semiconductors (PAPSPS 2002), paper L1, Wuerzburg, Germany, July 23-26, 2002.
M. Tanaka <Invited talk>, "High Ferromagnetic Transition Temperature (172K) in Mn-delta-doped GaAs Heterostructures with p-type Selective Doping", 10th International Advanced Heterostructure Workshop, the Big Island of Hawaii, December 1-6, 2002.
M. Tanaka <Invited talk>, "Spin tunneling and magnetotransport in GaMnAs-based heterostructures", Annual American Physical Society (APS) March Meeting 2003, paper S7.004, Austin, USA, March 3-7, 2003.
M. Tanaka <Invited talk>, "Ferromagnetic heterostructures for spin-electronics", Sweden-Japan Nanotechnology Colloquium, Lund, Sweden, March 16-18, 2003.
M. Tanaka <Invited talk>, "Nanotechnology research in Japan", Sweden-Japan Nanotechnology Colloquium, Lund, Sweden, March 16-18, 2003.
M. Tanaka <Invited talk>, "Spin tunneling and transport in ferromagnetic III-V heterostructures", 32nd International School on the Physics of Semiconducting Compounds, Ustron-Jaszowiec, Poland, May 31-June 6, 2003.
M. Tanaka, S. Sugahara, and A.M. Nazmul <Invited talk>, "Ferromagnetic Heterostructures based on Semiconductors", 2003 Summer Conference of the Korean Magnetics Society and Japan-Korea Symposium on Spintronics and its Applications, July 19-21, 2003, Hanwha Resort at Haewoondate Beach, Busan, Korea.
M. Tanaka <Invited talk>, "Ferromagnetic heterostructures for semiconductor spintronics", Japan-US Workshop on Frontiers of Nanoscale Science and Technology, Komaba, University of Tokyo, July 10-12, 2003.
M. Tanaka and A.M. Nazmul <Invited talk>, "Control of ferromagnetic order and high Curie temperature in Mn-delta-doped i-HEMT structures", Spintech II, International Conference and School on Semiconductor Spintronics and Quantum Information Technology, Crowne Plaza Hotel, Brugge, Belgium August 4-8, 2003.
M. Tanaka <Invited talk>, "Ferromagnetic heterostructures for semiconductor spintronics", International Symposium on Compound Semiconductors (ISCS-2003), San Diego, August 25-27, 2003.
M. Tanaka <Invited talk>, "Control of ferromagnetic order in selectively p-doped GaMnAs-based heterostructures", Int. Conf. on Solid State Devices and Materials (SSDM), 'Core area 8 Quantum Nanostructure Devices and Physics', Tokyo, September 16-18, 2003.
M. Tanaka <Invited talk>, "Ferromagnetic Semiconductor Heterostructures for Spintronics", The Fourth Korea-Japan Workshop on Strongly Correlated Systems on Spectroscopy of Correlated Materials and their Nano-Structures, Iizuna-Kogen, Nagano, Japan, September 24-26, 2003.
M. Tanaka <Plenary talk>, "Epitaxial ferromagnetic heterostructures based on semiconductors: growth, properties, and applications", Plenary sessions on 'The Future of Spintronics' in the 50th American Vacuum Society (AVS) Annual Symposium, Baltimore, November 2-7, 2003.
M. Tanaka <Invited talk>, “Ferromagnetic semiconductor heterostructures”, International Workshop on Nano-Scale Magnetoelectronics, Nagoya, 25-27 November, 2003
A. M. Nazmul, T. Amemiya, S. Sugahara, and M. Tanaka <Invited talk>, "Ferromagnetism in Semiconductor-based Heterostructures", International Conference on Physics for Understanding and Applications, Auditorium BUET, Dhaka, Bangladesh, 22 - 24 February, 2004.
M. Tanaka <Invited talk>, "Ferromagnetic heterostructures for spintronics", International Symposium on Mesoscopic Superconductivity and Spintronics 2004 (MS+S2004), NTT Basic Research Laboratories Atsugi, Kanagawa, March 1-4, 2004.
M. Tanaka <Invited talk>, "Control of ferromagnetic order in semiconductor heterostructures with Mn delta doping", MRS Spring Meeting 2004, San Francisco, April 12-16, 2004.
M. Tanaka <Invited talk>, "Nanospintronics Design and Realization", International Conference on Nanospintronics Design and Realization (ICNDR), 24-28 May, 2004.
M. Tanaka <Plenary talk>, "Spintronics: Recent Progress and Tomorrow's Challenges", International Conference on Molecular Beam Epitaxy (MBE2004), Edinburgh, UK, August 22 - 27, 2004.
M. Tanaka <Invited talk>, M. Tanaka, S. Sugahara, and A. M. Nazmul, "Magnetic Semiconductors and Heterostructures for Spin Electronics", The First Asia Forum on Magnetics, Okinawa Convention Center, Ginowan, Okinawa, Japan, September 21-24, 2004.
M. Tanaka <Invited talk>, "Ferromagnetic Semiconductor Heterostructures for Spintronics", Advanced Heterostructure Workshop, the Big Island of Hawaii, December 5-10, 2004.
M. Tanaka <Invited lecture>, "Ferromagnetic Semiconductor Heterostructures and Devices for Spintronics", Spintronics tutorial session at the American Physical Society March Meeting, Los Angeles, March 20-25, 2005.
M. Tanaka <Invited talk>, "Heterojunction Engineering of Semiconductor Ferromagnetism" (suggested title), American Physical Society March Meeting, Los Angeles, March 20-25, 2005.
M. Tanaka and S. Sugahara <Invited talk>, "Spin devices for integrated circuits", International Magnetics Conference (Intermag 2005), Nagoya Congress Center, April 4-8, 2005.
M. Tanaka <Invited talk>, "Ferromagnetic heterostructures for spintronics", 8th International Conference on Atomically Controlled Surfaces, Interfaces, and Nanostructures (ACSIN-8) and, 13th International Conference on Thin Films (ICTF-13), Stockholm, Sweden, June 19-23, 2005.
S. Sugahara <Invited talk>, "Spin MOSFETs as a basis for integrated spin-electronics", 5th IEEE Conference on Nanotechnology, Nogoya, July 11-15, 2005.
S. Sugahara <Invited talk>, "Spin MOS Transistors", SRC: 6th International Workshop on Future Information Processing Technologies (IWFIPT), Asheville, USA, August 29 - September 1, 2005.
M. Tanaka <Invited talk>, "Si-based Spintronics Devices", UT-TUM Bilateral Symposium on Nanosciences, Komaba Campus of the University of Tokyo, October 5, 2005.
A.M. Nazmul and M. Tanaka <Invited talk>, "Ferromagnetic III-V semiconductor heterostructures with Mn delta doping", Symposium on 'Dilute magnetic materials for spintronic applications', EMRS Fall Meeting, Warsaw 4-8 September 2006.
M. Tanaka <Invited talk>, "New materials and device structures for semiconductor spintronics", 34th Conference on the Physics and Chemistry of Semiconductor Interfaces (PCSI-34), Salt Lake City, USA, January 14-18, 2007.
S. Ohya and M. Tanaka (invited)
"Recent Progress in Ferromagnetic Semiconductor Heterostructures"
1st International Symposium on Advanced Magnetic Materials and Applications (ISAMMA)
Hotel Shilla, Jeju Island, Korea, May 28- June 1, 2007.
M. Tanaka (invited)
"Recent Progress in Group IV and III-V-based Ferromagnetic Semiconductors"
Polish-Japanese Seminar on Ferromagnetism and Magnetic Nanostructures in Semiconductors, Leszno, Poland, September 26-29 (2007).
M. Tanaka (invited)
"Spin MOSFETs and reconfigurable logic design"
Workshop on Ferromagnetic Logic Devices, Circuits and Applications, UCLA, Los Angeles, February 21-22, 2008.
M. Tanaka (invited)
"Spintronics materials and devices for advanced electronics"
2008 RCIQE International Seminar on Advanced Semiconductor Materials and Devices, Hokkaido University, Sapporo, March 3-4, 2008.
M. Tanaka (invited)
"Materials and Devices for Semiconductor Spintronics"
4th Asian Conference of Crystal Growth and Crystal Technology (CGCT-4), Sendai, May 21-23, 2008.
M. Tanaka (invited)
"Recent Progress in Materials and Devices for Semiconductor Spintronics"
9TH International Workshop on Expert Evaluation & Control of Compound Semiconductor Materials & Technologies (EXMATEC 2008)
Lodz, Poland, 1st-4th June 2008.
M. Tanaka (Keynote presentation, invited)
"Spin dependent transport in III-V magnetic heterostructures"
Spintronics 2008, Spin Sensing and Devices, SPIE Optics & Photonics Symposium, San Diego, August 10-14, 2008.
M. Tanaka, P-N. Hai, and S. Ohya (invited)
"Huge magnetoresistance and electromotive force in Zinc-Blende MnAs nanoparticles / III-V semiconductor hybrid structures"
13th Advanced Heterostructures and Nanostructures Workshop(AHNW 2008) - Workshop on Innovative Nanoscale Devices and Systems -
Hapuna Beach Prince Hotel, Hawaii December 7-12, 2008.
S. Ohya, P-N. Hai, and M. Tanaka (invited)
"III-V- Semiconductor-Based Ferromagnetic Heterostructures"
Asian Magnetics Conference 2008, Busan, Korea, December 10-13, 2008.
"Ferromagnetic semiconductors and heterostructures"
JSPS-Argonne National Lab Joint Workshop on Nanotechnology, Argonne National Laboratory, USA, March 6-7, 2009.
Ahsan M. Nazmul, Sanjukta Ghosh, and Masaaki Tanaka
"Strong Magnetic Circular Dichroism in Mn Delta-doped GaAs"
American Physical Society March Meeting 2009, paper No.T22.00007, Pittsburg, March 16-20,2009.
M. Tanaka (invited)
"Functionalities of GaAs/MnAs nanocomposites"
5th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH V),
Krakow (Cracow), Poland, July 7-11, 2009.
P. N. Hai, S. Ohya, S. E. Barnes, S. Maekawa, and M. Tanaka
"Electromotive force and huge magnetoresistance induced by zinc-blende MnAs nanomagnets in magnetic tunnel junctions"
5th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH V),
Krakow (Cracow), Poland, July 6-11, 2009.
S. Ohya, I. Muneta,and M. Tanaka
"Quantum level control in III-V based ferromagnetic semiconductor heterostructures with a GaMnAs quantum well and double barriers"
5th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH V),
Krakow (Cracow), Poland, July 6-11, 2009.
P.N. Hai, S. Ohya, S.E. Barnes, S. Makeawa,and M.Tanaka (invited)
"Electromotive force and magnetoresistance (~100,000%) in magnetic tunnel junctions with zinc-blende MnAs nanomagnets
14th International Conference on Modulated Semiconductor Structures (MSS-14), Kobe, July 20-24, 2009.
Y. Shuto, R. Nakane, H. Sukegawa, S. Yamamoto, M. Tanaka, K. Inomata, and S. Sugahara
"Fabrication and characterization of pseudo-spin-MOSFETs
International Symposium on Silicon Nanodevices in 2030: Prospects by world's leading scientists
Tokyo Institute of Technology, Oookayama, Tokyo, October 13-14, 2009.
M. Tanaka, P.N. Hai, and S. Ohya (invited)
"Electromotive force and huge magnetoresistance (~100,000%) in magnetic nanostructures with zincblende MnAs nanomagnets"
9th Japan-Sweden QNANO Workshop, Komaba campus at University of Tokyo, November 13-14, 2009.
S. Ohya, I. Muneta, P. N. Hai, and M. Tanaka
"Spin-Dependent Resonant Tunneling Spectroscopy on the Valence-Band Structure of Ferromagnetic-Semiconductor GaMnAs"
International Symposium on Quantum Nanophotonics and Nanoelectronics (ISQNN2009), Komaba campus at University of Tokyo, November 18-20, 2009.
I. Muneta, S. Ohya,and M. Tanaka
"Spin-dependent properties of three-terminal ferromagnetic semiconductor heterostructures with a GaMnAs quantum well and double barriers: Control of quantum levels and TMR"
International Symposium on Quantum Nanophotonics and Nanoelectronics (ISQNN2009), Komaba campus at University of Tokyo, November 18-20, 2009.
P. N. Hai, S. Ohya, and M. Tanaka
"Electromotive force and huge magnetoresistance in magnetic tunnel junctions with zinc-blende MnAs nanomagnets"
International Symposium on Quantum Nanophotonics and Nanoelectronics (ISQNN2009), Komaba campus at University of Tokyo, November 18-20, 2009.
Ahsan M. Nazmul and Masaaki Tanaka (invited)
"Ferromagnetic Semiconductor Heterostructures for Spintronics"
12nd International Symposium on Microwave and Optical Technology (ISMOT-2009), New Delhi, India, December 16-19, 2009.
S. Ohya, I. Muneta, P. N. Hai, and M. Tanaka
"Valence-Band Structure of Ferromagnetic-Semiconductor GaMnAs Studied by Spin-Dependent Resonant Tunneling Spectroscopy"
11th Joint MMM-Intermag Conference, Washington DC, USA, January 18-22, 2010.
I. Muneta, S. Ohya, and M. Tanaka
"Spin-dependent properties of three-terminal ferromagnetic semiconductor heterostructures with a GaMnAs quantum well and double barriers: Control of quantum levels and TMR"
11th Joint MMM-Intermag Conference, Washington DC, USA, January 18-22, 2010.
M. Tanaka, P.N. Hai, and S. Ohya (invited)
"Electromotive force and huge magnetoresistance in magnetic tunnel junctions with zinc-blende MnAs nanomagnets"
4th International Workshop on Spin Current and the 2nd International Workshop on Spin Caloritronics, Sendai, February 8-10, 2010.
Ryota Akiyama, Pham Nam Hai, Masaaki Tanaka
"Structure-parameter dependence of the electromotive force in spin batteries"
4th International Workshop on Spin Current and the 2nd International Workshop on Spin Caloritronics, Sendai, February 8-10, 2010.
R. Akiyama, Pham Nam Hai, and M. Tanaka
"Equivalent circuit model of the "spin battery" with zinc-blende MnAs nanomagnets"
International Symposium on Quantum Nanostructures and Spin-related Phenomena (QNSP), Komaba Campus, University of Tokyo, March 9-11, 2010.
P. N. Hai, S. Ohya, M. Tanaka, S. E. Barnes and S. Maekawa (invited)
"Electromotive force and huge magnetoresistance in magnetic tunnel junctions with zinc-blende MnAs nanomagnets"
American Physical Society (APS) March Meeting 2010, paper L36.00010, Portland, Oregon, USA, March 15-19, 2010.
Shinobu Ohya, Iriya Muneta, Pham Nam Hai, and Masaaki Tanaka
"Investigation on the valence-band structure of ferromagnetic-semiconductor GaMnAs using spin-dependent resonant tunneling spectroscopy"
American Physical Society (APS) March Meeting 2010, paper P35.00008, Portland, Oregon, USA, March 15-19, 2010.
Iriya Muneta , Shinobu Ohya , Masaaki Tanaka
"Spin-dependent transport properties of three-terminal ferromagnetic-semiconductor heterostructures with a GaMnAs quantum well and double barriers: Control of quantum levels and TMR"
American Physical Society (APS) March Meeting 2010, paper W35.00010, Portland, Oregon, USA, March 15-19, 2010.
M. Tanaka, P.N. Hai, S. Ohya, S.E. Barnes, and M. Maekawa (invited)
"Electromotive force and huge magnetoresistance in magnetic nanostructures"
Korean Physical Society Meeting, Daejeon, Korea, April 21-23, 2010.
Masaaki Tanaka, Pham Nam Hai, Shinobu Ohya
"Spintronics Materials and Devices - New Functionalities and Electromagnetism -"
Tsinghua University - University of Tokyo Joint Workshop on Secure-Life Photonics, Hongo Campus, University of Tokyo, May 13, 2010.
Masaaki Tanaka (invited)
"Electromotive force and huge magnetoresistance in magnetic nanostructures"
International Conference on Nano-spintronics Design and Realization (ICNDR-2010), Osaka University, May 30-June 4, 2010.
Pham Nam Hai, S. Ohya, and M. Tanaka (invited)
"Spin motive force"
37th International Symposium on Compound Semiconductors (ISCS 2010), Takamatsu, Japan, May 31 - June 4, 2010.
Pham Nam Hai and M. Tanaka (invited)
"Emerging semiconductor spintronic devices and materials"
Solid-State Systems Symposium 2010 (4S-2010), Vietnam National University, Ho Chi Minh (VNU-HCM), Vietnam, June 17-18, 2010,
S. Ohya, I. Muneta. P. N. Hai, and M. Tanaka
"Fermi Level Position and Valence-Band Structure in GaMnAs Studied by Spin-Dependent Resonant Tunneling Spectroscopy"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
S. Ohya, K. Takata, M. Tanaka,
"Universal Valence-Band Picture of GaMnAs with High Curie Temperature"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
I. Muneta, S. Ohya, and M. Tanaka
"Spin-dependent transport in GaMnAs-based double-quantum-well resonant-tunneling diodes"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
P. N. Hai, S. Ohya, and M. Tanaka
"Spin-dependent Transport and Long Spin-Relaxation Time in a Hexagonal MnAs Nanoparticle"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
S. Yada, R. Okazaki, S. Ohya, and M. Tanaka
"Magnetic and structural properties of Ge1-xMnx films grown on Ge (111) substrates"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
S. Sato, R. Nakane, S. Kokutani, and M. Tanaka
"Influence of anisotropic magnetoresistance on nonlocal signals in multi-terminal lateral devices with a Si channel and Fe electrodes"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
A. M. Nazmul, S. Ghosh, S. Ohya, and M. Tanaka
"Control of ferromagnetism by light irradiation in a Mn-delta-doped GaAs/p-AlGaAs heterostructure"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
Y. Shuto, R. Nakane, W. H. Wang, H. Sukegawa, S. Yamamoto, M. Tanaka, K. Inomata,and S. Sugahara
"A new spin-functional MOSFET based on MTJ technology: Pseudo-spin-MOSFET"
6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS-VI), August 1-4, 2010, University of Tokyo, Tokyo, Japan.
Masaaki Tanaka (invited)
"Properties and functionalities of MnAs nanoparticles in III-V: spin transport, magnetoresistance, and electromotive force"
2010 Magnetic Nanostructures Gordon Research Conference, Bates College, Lewiston, Maine, USA, August 8-13, 2010.
S. Ohya, K. Takata and M. Tanaka
"Resonant Tunneling in a GaMnAs Surface Quantum Well and Its Valence-Band Picture"
16th International Conference on Molecular Beam Epitaxy, Berlin, August 23-27, 2010.
Masaaki Tanaka (invited)
"Properties and functionalities of MnAs-nanoparticle / III-V-semiconductor hybrid structures"
Symposium N 'Inhomogeneous and hybrid magnetic semiconductor systems', E-MRS Fall Meeting 2010, Warsaw, Poland, September 13-17, 2010.
Masaaki Tanaka (invited)
"III-V based magnetic heterostructures and nanostructures: Spin dependent tunneling, magnetoresistance, and electromotive force"
IBM MRC Workshop on III-V Devices, IBM Zurich Reseatch, Zurich, Switzerland, September 20-21, 2010
Masaaki Tanaka (plenary, invited)
"Properties and functionalities of MnAs-nanoparticle / III-V-semiconductor hybrid structures: Spin transport, magnetoresistance, and electromotive force"
IEEE 7th International Symposium on Metallic Multilayers (MML2010), Berkeley, USA, September 19-24, 2010.
Shinsuke Yada, Ryohei Okazaki and Masaaki Tanaka
"Large magnetoresistance of Ge1-xMnx single films and heterostructures with magnetic nanocolumns"
2010 International Conference on Solid State Devices and Materials (SSDM 2010), University of Tokyo, Tokyo, Japan, September 22-24, 2010.
Pham Nam Hai, S. Ohya, and M. Tanaka
"Spin dependent transport in a single-electron spin transistor"
University of Wuerzburg - University of Tokyo joint Workshop on Advances in Nanophotonics and Spintronics, Wuerzburg, Germany, October 4-6, 2010.
Masaaki Tanaka and Shinobu Ohya (invited)
"Spin dependent resonant tunneling in III-V-based ferromagnetic-semiconductor heterostructures"
55th Annual Conference on Magnetism and Magnetic Materials (MMM2010), Atlanta, USA, November 14-18, 2010.
S. Ohya, K. Takata, and M. Tanaka,
"Universal Valence-Band Picture of GaMnAs Studied by Resonant Tunneling Spectroscopy",
55th Annual Conference on Magnetism and Magnetic Materials (MMM2010), Atlanta, USA, November 14-18, 2010.
P. N. Hai, S. Ohya and M. Tanaka
"Long spin-relaxation time (10 microsecond) in a single ferromagnetic-metal MnAs nanoparticle"
55th Annual Conference on Magnetism and Magnetic Materials (MMM2010), Atlanta, USA, November 14-18, 2010.
S. Yada, R. Okazaki and M. Tanaka
"Large positive magnetoresistance of Ge1-xMnx films with magnetic nanocolumns and its heterostructure"
55th Annual Conference on Magnetism and Magnetic Materials (MMM2010), Atlanta, USA, November 14-18, 2010.
ATIP Report "New Tunnel MR Junctions Composed of Magnetic Semiconductors and Band Gap Engineering" by Prof. M. Tanaka's group at the University of Tokyo, June 1999.
"Getting Warmer, MAGNETIC SEMICONDUCTORS REACH HIGHER TEMPERATURES", Scientific American, pp.30-31, March 2003. In late 2002 Masaaki Tanaka and his co-workers at the University of Tokyo reported that applying a relatively simple annealing process to manganese-doped gallium arsenide boosted its maximum working temperature (known as the Curie temperature) as high as 172 kelvins. That is still far below room temperature, but the result constitutes "a genuine milestone," according to spintronics expert David D. Awschalom of the University of California at Santa Barbara.
Matreials Update News & Features in nature (materials) http://www.nature.com/materials/news/news/040429/portal/m040429-1.html 29 April 2004, Manipulating spins in semiconductors -Electrical and optical control of ferromagnetism in semiconductors by Charlene Lobo: Physicists are currently trying to exploit the spin of the electron in addition to its charge in order to create 'spintronic' devices that will be smaller, more versatile and more robust than those at present making up silicon chips and circuit elements. Many of the proposed devices are based on magnetic semiconductors ? semiconductors that have been doped with a small amount (<5%) of magnetic atoms, such as Mn. However, for spintronics devices to become a reality, researchers must first demonstrate that the magnetism that results from the large-scale alignment of spins in a magnetic semiconductor can be externally manipulated. As reported at the Materials Research Society Spring Meeting in San Francisco1, Masaaki Tanaka and colleagues have now achieved electrical and optical control of ferromagnetism in semiconductor heterostructures at relatively high temperatures. Tanaka and colleagues studied a Mn-doped GaAs quantum well embedded within a field-effect transistor structure that enabled electrical measurements2. The researchers were able to electrically modulate the ferromagnetic transition temperature over the range 105?120 K by varying the voltage on the top gate of the transistor. They were also able to manipulate the magnetism using irradiation with polarized light, which produced an enhancement of ferromagnetic order. Although the modulated temperature range is small and still well below room temperature, the work provides a promising indication that functional spintronics devices could be fabricated using more suitable semiconductor heterostructures. References: 1. Tanaka M., & Nazmul A. M. Control of ferromagnetic order in semiconductor heterostructures with Mn delta doping. Abstract G1.4, MRS Spring Meeting (2004). 2. Nazmul A. M., Kobayashi S., Suguhara S. & Tanaka M. External control of magnetism in semiconductors at high temperature ( 100 K). Preprint at http://arxiv.org/abs/cond-mat/0309532 (2003).
Nature vol.458 (7237), (Mar 2009)
Highlights: 物性:スピン起電力
電子が回路を流れるとき、力が電荷に作用して電子のエネルギーを増大させる。これが起電力で、ファラデーの電磁誘導の法則によると、静磁場では起電力は発生しない。しかし、電子のスピンに作用する別の力が存在するため、静磁場中であっても、スピンのみに起因する起電力が生じる可能性が出てきた。P N Haiたちは今回、ナノスケールの磁性粒子を含む磁気トンネル接合を用いて、そのような効果を実現した。これらの構造体で起こった磁気エネルギーから電気エネルギーへの変換によって、100,000％という実用的な大きさの磁気抵抗応答が生じており、これが「スピン電池」の基礎となる可能性もある。
Letters to Nature p.489
http://www.natureasia.com/japan/nature/updates/index.php?id=71499&issue=7237
NPG Asia Materials, featured highlight
Magnetic nanostructures: Faraday's law evolves
(Published online 22 June 2009)
http://www.natureasia.com/asia-materials/highlight.php?id=464
オンラインジャーナル Nature Publishing Group Asia Materials のハイライト
記事(featured highlight)に、
「磁性ナノ構造：ファラデーの法則は進化する」
と題する田中研究室の研究成果が紹介された。
