Exploration and creation of highly efficient spin sources using half-metallic ferromagnets

• Project Area: Creation and control of spin current
• Project/Area Number: 19048001
• Research Category: Grant-in-Aid for Scientific Research on Priority Areas
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Hokkaido University
• Principal Investigator: YAMAMOTO Masafumi Hokkaido University, 大学院・情報科学研究科, 教授 (10322835)
• Co-Investigator(Kenkyū-buntansha): TETSUYA Uemura 北海道大学, 大学院・情報科学研究科, 准教授 (20344476) ; MATSUDA Ken-ichi 北海道大学, 大学院・情報科学研究科, 助教 (80360931)
• Project Period (FY): 2007 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥34,400,000 (Direct Cost: ¥34,400,000); Fiscal Year 2010: ¥7,600,000 (Direct Cost: ¥7,600,000); Fiscal Year 2009: ¥9,600,000 (Direct Cost: ¥9,600,000); Fiscal Year 2008: ¥9,600,000 (Direct Cost: ¥9,600,000); Fiscal Year 2007: ¥7,600,000 (Direct Cost: ¥7,600,000)
• Keywords: スピン源 / ハーフメタル / ホイスラー合金 / スピントロニクス / スピン偏極率 / Co_2MnSi

Research Abstract

A highly efficient spin-polarized electron source or spin source is a key element for spintronic devices, in which both the charge and the spin of the electron are utilized as the information carrier. Heusler alloys thin films have attracted much interest as spin sources because of the half-metallic nature theoretically predicted for many of these alloys. It was found that detrimental defects can be reduced by appropriately controlling the film composition of Heusler alloys. It was also shown that the suppression of detrimental defects led to a significant enhancement of the half-metallic nature of Heusler alloy thin films in device structures. Excellent device characteristics were demonstrated for fabricated magnetic tunnel junctions with Heusler alloy electrodes and a MgO barrier by improving the interfacial structures in addition to the above-mentioned enhancement of the half-metallic nature.

Research Products

• [Journal Article] Influence of GaAs surface structure on tunneling anisotropic magnetoresistance and magnetocrystalline anisotropy in epitaxial Co_50Fe_50/n-GaAs junctions (2011)
  • Author(s): T.Uemura, M.Harada, T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.98
  • Peer Reviewed
• [Journal Article] Influence of GaAs surface structure on tunneling anisotropic magnetoresistance and magnetocrystalline anisotropy in epitaxial Co_<50>Fe_<50>/n-GaAs junctions (2011)
  • Author(s): T.Uemura, M.Harada, T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. Volume: 98
  • Peer Reviewed
• [Journal Article] Magnetic states of Mn and Co atoms at Co_2MnGe/MgO interfaces seen via soft x-ray magnetic circular dichroism (2010)
  • Author(s): D.Asakura, T.Koide, S.Yamamoto, K.Tsuchiya, T.Shioya, K.Amemiya, V.R.Singh, T.Kataoka, Y.Yamazaki, Y.Sakamoto, A.Fujimori, T.Taira, M.Yamamoto
  • Journal Title: Phys. Rev. B vol.82
  • Peer Reviewed
• [Journal Article] Internal electric field influence on tunneling anisotropic magnetoresistance in epitaxial ferromagnet/n-GaAs junctions (2010)
  • Author(s): T.Uemura, M.Harada, K.-i. Matsuda, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.96
  • NAID: 120002232163
  • Peer Reviewed
• [Journal Article] Giant Oscillations in Spin-Dependent Tunneling Resistances as a Function of Barrier Thickness in Fully Epitaxial Magnetic Tunnel Junctions with a MgO Barrier (2010)
  • Author(s): T.Marukame, T.Ishikawa, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Phys. Rev. B vol.81
  • Peer Reviewed
• [Journal Article] Interface Structure of Half-Metallic Heusler Alloy Co_2MnSi Thin Films Facing an MgO Tunnel Barrier Determined by X-ray Magnetic Circular Dichroism (2010)
  • Author(s): T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide, M.Miura, M.Shirai
  • Journal Title: Phys. Rev. B vol.81
  • Peer Reviewed
• [Journal Article] Effect of defects in Heusler alloy thin films on spin-dependent tunnelling characteristics of Co_2MnSi/MgO/Co_2MnSi and Co_2MnGe/MgO/Co_2MnGe magnetic tunnel junctions (2010)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, G-f.Li, K.-i. Matsuda, T.Uemura
  • Journal Title: J. Phys.: Condens. Matter vol.22
  • Peer Reviewed
• [Journal Article] Magneto-optical investigation of epitaxial nonstoichiometric Co_2MnGe thin films (2010)
  • Author(s): S.Trudel, J.Hamrle, B.Hillebrands, T.Taira, M.Yamamoto
  • Journal Title: J. Appl. Phys. vol.107
  • Peer Reviewed
• [Journal Article] Structural characterizations of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions by transmission electron microscopy (2010)
  • Author(s): T.M.Nakatani, Y.K.Takahashi, T.Ishikawa, M.Yamamoto, K.Hono
  • Journal Title: J. Magn. Magn. Mater. vol.322, Issue 3 Pages: 357-361
  • Peer Reviewed
• [Journal Article] Co系フルホイスラー合金を用いたスピン流の創出と制御 (2010)
  • Author(s): 植村哲也, 山本眞史
  • Journal Title: まてりあ vol.49 Pages: 566-569
  • NAID: 10027472091
• [Journal Article] Fabrication and the Transport Properties of NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN Lateral Junctions (2010)
  • Author(s): S.Imai, K.-i.Matsuda, T.Ishikawa, T.Uemura, M.Yamamoto
  • Journal Title: Physica C Volume: 470
  • Peer Reviewed
• [Journal Article] Magnetic states of Mn and Co atoms at Co_2MnGe/MgO interfaces seen via soft x-ray magnetic circular dichroism (2010)
  • Author(s): D.Asakura, T.Koide, S.Yamamoto, K.Tsuchiya, T.Shioya, K.Amemiya, V.R.Singh, T.Kataoka, Y.Yamazaki, Y.Sakamoto, A.Fujimori, T.Taira, M.Yamamoto
  • Journal Title: Phys.Rev.B Volume: 82
  • Peer Reviewed
• [Journal Article] Internal electric field influence on tunneling anisotropic magnetoresistance in epitaxial ferromagnet/n-GaAs junctions (2010)
  • Author(s): T.Uemura, M.Harada, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. Volume: 96
  • NAID: 120002232163
  • Peer Reviewed
• [Journal Article] Giant Oscillations in Spin-Dependent Tunneling Resistances as a Function of Barrier Thickness in Fully Epitaxial Magnetic Tunnel Junctions with a MgO Barrier (2010)
  • Author(s): T.Marukame, T.Ishikawa, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Phys.Rev.B Volume: 81
  • Peer Reviewed
• [Journal Article] Interface Structure of Half-Metallic Heusler Alloy Co2MnSi Thin Films Facing an MgO Tunnel Barrier Determined by X-ray Magnetic Circular Dichroism (2010)
  • Author(s): T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide, M.Miura, M.Shirai
  • Journal Title: Phys.Rev.B vol.81 Pages: 144417-144417
  • NAID: 120005394535
  • Peer Reviewed
• [Journal Article] Effect of defects in Heusler alloy thin films on spin-dependent tunnelling characteristics of Co_2MnSi/MgO/Co_2MnSi and Co_2MnGe/MgO/Co_2MnGe magnetic tunnel junctions (2010)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, G.-f.Li, K.-i.Matsuda, T.Uemura
  • Journal Title: J.Phys.: Condens.Matter vol22 Pages: 164212-164212
  • Peer Reviewed
• [Journal Article] Interface Structure of Half-Metallic Heusler Alloy Co_2MnSi Thin Films Facing an MgO Tunnel Barrier Determined by X-ray Magnetic Circular Dichroism (2010)
  • Author(s): T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide, M.Miura, M.Shirai
  • Journal Title: Phys.Rev.B Vol.81
  • Peer Reviewed
• [Journal Article] Effect of defects in Heusler alloy thin films on spin-dependent tunnelling characteristics of Co_2MnSi/MgO/Co_2MnSi and Co_2MnGe/MgO/Co_2MnGe magnetic tunnel junctions (2010)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, G.-f.Li, K.-i.Matsuda, T.Uemura
  • Journal Title: J.Phys.: Condens.Matter Vol.22 Pages: 164212-164221
  • Peer Reviewed
• [Journal Article] Magneto-optical investigation of epitaxial nonstoichiometric Co_2MnGe thin films (2010)
  • Author(s): S.Trudel, J.Hamrle, B.Hillebrands, T.Taira, M.Yamamoto
  • Journal Title: J.Appl.Phys. Vol.107
  • Peer Reviewed
• [Journal Article] Structural characterizations of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions by transmission electron microscopy (2010)
  • Author(s): T.M.Nakatani, Y.K.Takahashi, T.Ishikawa, M.Yamamoto, K.Hono
  • Journal Title: J.Magn.Magn.Mater. Vol.322 Pages: 357-361
  • Peer Reviewed
• [Journal Article] Influence of film composition in Co_2MnSi electrodes on tunnel magnetoresistance characteristics of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junction (2009)
  • Author(s): T.Ishikawa, H.-x.Liu, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.95
  • Peer Reviewed
• [Journal Article] Tunneling Magnetoresistance Simulation Used to Detect Domain-wall Structures and Their Motion in a Ferromagnetic Wire (2009)
  • Author(s): K.Sawada, T.Uemura, M.Masuda, K.-i.Matsuda, M.Yamamoto
  • Journal Title: IEEE Trans. on Magnetics vol.45 Pages: 3780-3783
  • Peer Reviewed
• [Journal Article] Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures (2009)
  • Author(s): T.Uemura, K.Sawada, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.95
  • NAID: 120001442877
  • Peer Reviewed
• [Journal Article] Tunneling anisotropic magnetoresistance in epitaxial CoFe/n-GaAs junctions (2009)
  • Author(s): T.Uemura, Y.Imai, M.Harada, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.94
  • NAID: 120001342684
  • Peer Reviewed
• [Journal Article] Spin-dependent tunnelling characteristics of fully epitaxial magnetic tunnel junctions with a Heusler alloy Co_2MnGe thin film and a MgO barrier (2009)
  • Author(s): T.Taira, T.Ishikawa, N.Itabashi, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: J. Phys. D : Applied Phys. vol.42
  • Peer Reviewed
• [Journal Article] Hard X-ray photoelectron spectroscopy of buried Heusler compounds (2009)
  • Author(s): S.Ouardi, B.Balke, A.Gloskovskii, G.H Fecher, C.Felser, G.Schoenhense, T.Ishikawa, T.Uemura, M.Yamamoto, H.Sukegawa, W.-H.Wang, K.Inomata, Y.Yamashita, H.Yoshikawa, S.Ueda, K.Kobayashi
  • Journal Title: J. Phys. D : Applied Phys. vol.42
  • Peer Reviewed
• [Journal Article] Half-metallic electronic structure of Co_2MnSi electrodes in fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions investigated by tunneling spectroscopy (invited) (2009)
  • Author(s): T.Ishikawa, N.Itabashi, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: J. Appl. Phys. vol.105
  • Peer Reviewed
• [Journal Article] Critical role of interface states for spin-dependent tunneling in half-metallic Co_2MnSi-based magnetic tunnel junctions investigated by tunneling spectroscopy (2009)
  • Author(s): T.Ishikawa, N.Itabashi, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.94
  • Peer Reviewed
• [Journal Article] Influence of annealing on spin-dependent tunneling characteristics of fully epitaxial Co_2MnGe/MgO/Co_<50>Fe_<50> magnetic tunnel junctions (2009)
  • Author(s): T.Taira, T.Ishikawa, N.Itabashi, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl. Phys. Lett. vol.94
  • Peer Reviewed
• [Journal Article] Influence of film composition in Co_2MnSi electrodes on tunnel magnetoresistance characteristics of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junction (2009)
  • Author(s): T.Ishikawa, H.-x.Liu, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. 95 Pages: 232512-232512
  • Peer Reviewed
• [Journal Article] Half-metallic electronic structure of Co_2MnSi electrodes in fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions investigated by tunneling spectroscopy (2009)
  • Author(s): T.Ishikawa, N.Itabashi, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: J.Appl.Phys. 105(invited)
  • Peer Reviewed
• [Journal Article] Critical role of interface states for spin-dependent tunneling in half-metallic Co_2MnSi-based magnetic tunnel junctions investigated by tunneling spectroscopy (2009)
  • Author(s): T.Ishikawa, N.Itabashi, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. vol.94 Pages: 92503-92503
  • Peer Reviewed
• [Journal Article] Influence of film composition in Co_2MnSi electrodes on tunnel magnetoresistance characteristics of Co_2MnSi/MgO/Co_2MhSi magnetic tunnel junction (2009)
  • Author(s): T.Ishikawa, H.-x.Liu, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. Vol.95
  • Peer Reviewed
• [Journal Article] Tunneling Magnetoresistance Simulation Used to Detect Domain-wall Structures and Their Motion in a Ferromagnetic Wire (2009)
  • Author(s): K.Sawada, T.Uemura, M.Masuda, K.-i.Matsuda, M.Yamamoto
  • Journal Title: IEEE Trans.on Magnetics Vol.45 Pages: 3780-3783
  • Peer Reviewed
• [Journal Article] Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures (2009)
  • Author(s): T.Uemura, K.Sawada, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. Vol.95
  • NAID: 120001442877
  • Peer Reviewed
• [Journal Article] Tunneling anisotropic magnetoresistance in epitaxial CoFe/n-GaAs junctions (2009)
  • Author(s): T.Uemura, Y.Imai, M.Harada, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Appl.Phys.Lett. Vol.94
  • NAID: 120001342684
  • Peer Reviewed
• [Journal Article] Spin-dependent tunnelling characteristics of fully epitaxial magnetic tunnel junctions with a Heusler alloy Co_2MnGe thin film and a MgO barrier (2009)
  • Author(s): T. Taira
  • Journal Title: J. Phys. D : Applied Phys. 42
  • Peer Reviewed
• [Journal Article] Hard X-ray photoelectron spectroscopy of buried Heusler compounds (2009)
  • Author(s): S. Ouardi
  • Journal Title: J. Phys. D : Applied Phys. 42
  • Peer Reviewed
• [Journal Article] Transport properties of Nb/PdNi bilayers and Nb/PdNi/Nb Josephson junctions (2009)
  • Author(s): K.-i. Matsuda
  • Journal Title: J. Physics : Conference Series 150
  • Peer Reviewed
• [Journal Article] Half-metallic electronic structure of Co_2MnSi electrodes in fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions proved by tunneling spectroscopy (Invited) (2009)
  • Author(s): T. Ishikawa
  • Journal Title: J. Appl. Phys. 105
  • Peer Reviewed
• [Journal Article] Critical role of interface states for spin-dependent tunneling in half-metallic Co_2MnSi-based magnetic tunnel junctions investigated by tunneling spectroscopy (2009)
  • Author(s): T. Ishikawa
  • Journal Title: Appl. Phys. Lett. 94
  • Peer Reviewed
• [Journal Article] Influence of annealing on spin-dependent tunneling characteristics of fully epitaxial Co_2MnGe/MgO/Co_<50>Fe_<50> magnetic tunnel junctions (2009)
  • Author(s): T. Taira
  • Journal Title: Appl. Phys. Lett. 94
  • Peer Reviewed
• [Journal Article] Three-valued Magnetic Tunnel Junction for Non-volatile Ternary Content Addressable Memory Application (2008)
  • Author(s): T.Uemura, M.Yamamoto
  • Journal Title: J. Appl. Phys. vol.104
  • Peer Reviewed
• [Journal Article] Fabrication and Characterization of Fully Epitaxial Magnetic Tunnel Junction Field Sensors using a Co_2MnSi Thin Film (2008)
  • Author(s): M.Masuda, T.Uemura, K.-i. Matsuda, M.Yamamoto
  • Journal Title: IEEE Transactions on Magnetics vol.44,no.11 Pages: 3996-3998
  • Peer Reviewed
• [Journal Article] Detection of the valence band in buried Co_2MnSi-MgO tunnel junctions by means of photoemission spectroscopy (2008)
  • Author(s): G.H.Fecher, B.Balke, A.Gloskowskii, S.Ouardi, C.Felser, T.Ishikawa, M.Yamamoto, Y.Yamashita, H.Yoshikawa, S.Ueda, K.Kobayashi
  • Journal Title: Appl. Phys. Lett. vol.92
  • Peer Reviewed
• [Journal Article] Three-valued Magnetic Tunnel Junction for Non-volatile Ternary Content Addressable Memory Application (2008)
  • Author(s): T. Uemura
  • Journal Title: J. Appl. Phys. 104
  • Peer Reviewed
• [Journal Article] Fabrication and Characterization of Fully Epitaxial Magnetic Tunnel Junction Field Sensors using a Co_2MnSi Thin Film (2008)
  • Author(s): M. Masuda
  • Journal Title: IEEE Transactiofis on Magnetics 44 Pages: 3996-3998
  • Peer Reviewed
• [Journal Article] Detection of the valence band in buried Co_2MnSi-MgO tunnel junctions by means of photoemission spectroscopy (2008)
  • Author(s): G H. Fecher
  • Journal Title: Appl. Phys. Lett. 92
  • Peer Reviewed
• [Journal Article] Epitaxial growth and characterization of Co_2MnSi thin films on GaAs with MgO interlayer (2008)
  • Author(s): T. Uemura
  • Journal Title: Physica E : Low-dimensional Systems and Nanostructures 40 Pages: 2025-2027
  • Peer Reviewed
• [Journal Article] Fabrication of fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2008)
  • Author(s): T. Ishikawa
  • Journal Title: J. Appl. Phys. 103
  • Peer Reviewed
• [Journal Article] Electronic and magnetic properties of Heusler alloy Co_2MnSi Epitaxial ultrathin films facing a MgO barrier studied by X-ray magnetic circular dichroism (2008)
  • Author(s): T. Saito
  • Journal Title: J. Appl. Phys. 103
  • Peer Reviewed
• [Journal Article] Magnetic and transport properties of superconductor/ferromagnet bilayer microbridges (2008)
  • Author(s): K.-i. Matsuda
  • Journal Title: J. Appl. Phys. 103
  • Peer Reviewed
• [Journal Article] Structural, magnetic and electrical properties of Co_2MnSi/MgO/n-GaAstunnel junction (2008)
  • Author(s): S. Kawagishi
  • Journal Title: J. Appl. Phys. 103
  • Peer Reviewed
• [Journal Article] Advances bO5-b6 (2008)
  • Author(s): M. Yamamoto
  • Journal Title: Solid State Physics, Springer vol. 47 Pages: 105-116
• [Journal Article] X-ray absorption spectroscopy and x-ray magnetic circular dichroism of epitaxially grown Heusler alloy Co_2MnSi ultrathin films facing a MgO barrier (2007)
  • Author(s): T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide
  • Journal Title: Appl. Phys. Lett. vol.91
  • Peer Reviewed
• [Journal Article] Structural and magnetic properties of Co_2Cr_<0.6>Fe_<0.4>Al thin films epitaxially grown on GaAs substrate with MgO interlayer (2007)
  • Author(s): T.Uemura, T.Yano, K.-i.Matsuda, M.Yamamoto
  • Journal Title: Thin Solid Films vol.515 Pages: 8013-8016
  • Peer Reviewed
• [Journal Article] Four-state Magnetoresistance in Epitaxial CoFe-based Magnetic Tunnel Junction (2007)
  • Author(s): T.Uemura, T.Marukame, K.-i.Matsuda, M.Yamamoto
  • Journal Title: IEEE Trans. on Magn. vol.43 Pages: 2791-2793
  • Peer Reviewed
• [Journal Article] Fabrication of Fully Epitaxial Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_2Cr_<0.6>Fe_<0.4>Al Magnetic Tunnel Junctions (2007)
  • Author(s): T.Marukame, T.Ishikawa, S.Hakamata, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Journal Title: IEEE Trans. on Magn. vol.43 Pages: 2782-2784
  • Peer Reviewed
• [Journal Article] Magnetic and Transport Properties of Nb/PdNi Bilayers (2007)
  • Author(s): K.-i.Matsuda, H.Niwa, Y.Akimoto, T.Uemura, M.Yamamoto
  • Journal Title: IEEE Trans. on Appl. Supercond. vol.17 Pages: 3529-3532
  • NAID: 120000971488
  • Peer Reviewed
• [Journal Article] Improved tunnel magnetoresistance characteristics of magnetic tunnel junctions with a Heusler alloy thin film of Co_2MnGe and a MgO tunnel barrier (2007)
  • Author(s): S.Hakamata, T.Ishikawa, T.Marukame, K.-i.Matsuda, T.Uemura, M.Arita, M.Yamamoto
  • Journal Title: J. Appl. Phys. vol.101
  • Peer Reviewed
• [Journal Article] Tunnel magnetoresistance in fully epitaxial magnetic tunnel junctions with a full-Heusler alloy thin film of Co_2Cr_<0.6>Fe_<0.4>Al and a MgO tunnel barrier (2007)
  • Author(s): T.Marukame, M.Yamamoto
  • Journal Title: J. Appl. Phys. vol.101
  • Peer Reviewed
• [Journal Article] X-ray absorption spectroscopy and x-ray magnetic circular dichroism of epitaxially grown Heusler alloy Co_2MnSi ultrathin films facing a MgO barrier (2007)
  • Author(s): T. Saito
  • Journal Title: Appl. Phys. Lett. 91
  • Peer Reviewed
• [Journal Article] Structural and magnetic properties of Co_2Cr_<0.6>Fe_<0.4>Al thin films epitaxiallygrown on GaAs substrate with MgO interlayer (2007)
  • Author(s): T. Uemura
  • Journal Title: Thin Solid Films 515 Pages: 8013-8016
  • Peer Reviewed
• [Journal Article] Fabrication of Epitaxial Magnetic Tunnel Junctions with a Co_2Cr_<0.6>Fe_<0.4>Al Thin Film and Their Tunnel Magnetoresistance Characteristics (2007)
  • Author(s): T. Marukame
  • Journal Title: J. Magn. Soc. Jpn. 31 Pages: 344-350
  • Peer Reviewed
• [Journal Article] Four-state Magnetoresistance in Epitaxial CoFe-based Magnetic Tunnel Junction (2007)
  • Author(s): T. Uemura
  • Journal Title: IEEE Trans. on Magn. 43 Pages: 2791-2793
  • Peer Reviewed
• [Journal Article] Fabrication of Fully Epitaxial Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_2Cr_<0.6>Fe_<0.4>Al Magnetic Tunnel Junctions (2007)
  • Author(s): T. Marukame
  • Journal Title: IEEE Trans. on Magn. 43 Pages: 2782-2784
  • Peer Reviewed
• [Journal Article] Fabrication of Fully Epitaxial Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_2Cr_<0.6>Fe_<0.4>Al Magnetic Tunnel Junctions (2007)
  • Author(s): K.-i. Matsuda
  • Journal Title: IEEE Trans. on Appl. Supercond. 17 Pages: 3529-3532
  • Peer Reviewed
• [Journal Article] Improved tunnel magnetoresistance characteristics of magnetic tunneljunctions with a Heusler alloy thin film of Co_2MnGe and a MgO tunnel barrier (2007)
  • Author(s): S. Hakamata
  • Journal Title: J. Appl. Phys. 101
  • Peer Reviewed
• [Journal Article] Tunnel magnetoresistance in fully epitaxial magnetic tunnel junctions with a full-Heusler alloy thin film of Co_2Cr_<0.6>Fe_<0.4>Al and a MgO tunnel barrier (2007)
  • Author(s): T. Marukame
  • Journal Title: J. Appl. Phys. 101
  • Peer Reviewed
• [Presentation] Epitaxial growth of Heusler alloy Co_2MnSi/MgO heterostructure on Ge (001) substrate (2011)
  • Author(s): G.-f.Li, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 2011 Int'l Magnetics Conf., HC-06
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-04-29
• [Presentation] Electrical injection and detection of spin-polarized electrons in an epitaxial Co_<50>Fe_<50>/n-GaAs junction (2011)
  • Author(s): T.Uemura, M.Harada. T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Organizer: 2011 Int'l Magnetics Conf., BP-08
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-04-26
• [Presentation] Spin-dependent transport properties of Co_2MnSi/MgO/n-GaAs tunnel junctions (2011)
  • Author(s): T.Akiho, M.Harada, T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Organizer: 2011 Int'l Magnetics Conf., BP-03
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-04-26
• [Presentation] Epitaxial growth of Co_2MnSi/MgO heterostructures on Ge(001) substrates (2011)
  • Author(s): G.-f.Li, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 2011年(平成23年)春季第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(厚木市)
  • Year and Date: 2011-03-25
• [Presentation] Co_<50>Fe_<50>/n-GaAsにおけるスピン注入の電気的検出 (2011)
  • Author(s): 植村哲也, 原田雅亘, 秋保貴史, 松田健一, 山本眞史
  • Organizer: 2011年(平成23年)春季第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(厚木市)
  • Year and Date: 2011-03-24
• [Presentation] High tunnel magnetoresistance in fully epitaxial CoFe-buffered Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2011)
  • Author(s): H.-x.Liu, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 4^<th> International Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2011-01-18
• [Presentation] Spin-dependent transport properties of Co_2MnSi/MgO/n-GaAs tunnel junctions (2011)
  • Author(s): G.-f.Li, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 4^<th> International Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2011-01-18
• [Presentation] Co_2MnSi薄膜を用いた強磁性トンネル接合におけるスピン依存トンネル抵抗のMgOバリア膜厚依存性 (2011)
  • Author(s): 平田進之佑, 李桂芳, 本田佑輔, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2011年(平成23年)第46回応用物理学会北海道支部学術講演会
  • Place of Presentation: 室蘭工業大学(室蘭市)
  • Year and Date: 2011-01-07
• [Presentation] 強磁性体/n-GaAsヘテロ接合におけるトンネル特性のMgO層挿入効果 (2011)
  • Author(s): 原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
  • Organizer: 2011年(平成23年)第46回応用物理学会北海道支部学術講演会
  • Place of Presentation: 室蘭工業大学(室蘭市)
  • Year and Date: 2011-01-07
• [Presentation] 強磁性体/n-GaAsヘテロ接合におけるトンネル特性のMgO層挿入効果 (2010)
  • Author(s): 秋保貴史, 原田雅亘, 植村哲也, 松田健一, 山本眞史
  • Organizer: The 15^<th> Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-15)
  • Place of Presentation: 筑波大学(つくば市)
  • Year and Date: 2010-12-21
• [Presentation] Highly spin-polarized tunneling characteristics at room temperature in magnetic tunnel junctions with a half-metallic Heusler-alloy spin source and a MgO barrier (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts, pp. 370-371, ET-11
  • Place of Presentation: Atlanta, Georgia, USA
  • Year and Date: 2010-11-17
• [Presentation] Highly spin-polarized tunneling characteristics at room temperature in magnetic tunnel junctions with a half-metallic Heusler-alloy spin source and a MgO barrier (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conference on Magnetism & Magnetic Materials
  • Place of Presentation: Atlanta, GA, USA
  • Year and Date: 2010-11-17
• [Presentation] Giant oscillations of spin-dependent tunneling resistances as a function of MgO barrier thickness in fully epitaxial magnetic tunnel junctions of Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_2Cr_<0.6>Fe_<0.4>Al (2010)
  • Author(s): M.Yamamoto, T.Marukame, T.Ishikawa, T.Taira, K.-i.Matsuda, T.Uemura
  • Organizer: 55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts, p. 165, CB-01
  • Place of Presentation: Atlanta, Georgia, USA
  • Year and Date: 2010-11-16
• [Presentation] Structural and magnetic properties at Co_2MnSi/MgO(001) interfaces studied by x-ray magnetic circular dichroism and first-principles calculations (2010)
  • Author(s): Y.Miura, M.Shirai, T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide
  • Organizer: 55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts, p. 165, CB-02
  • Place of Presentation: Atlanta, Georgia, USA
  • Year and Date: 2010-11-16
• [Presentation] Giant oscillations of spin-dependent tunneling resistances as a function of MgO barrier thickness in fully epitaxial magnetic tunnel junctions of Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_2Cr_<0.6>Fe_<0.4>Al (2010)
  • Author(s): M.Yamamoto, T.Marukame, T.Ishikawa, T.Taira, K.-i.Matsuda, T.Uemura
  • Organizer: 55th Annual Conference on Magnetism & Magnetic Materials
  • Place of Presentation: Atlanta, GA, USA
  • Year and Date: 2010-11-16
• [Presentation] Structural and magnetic properties at Co_2MnSi/MgO(001) interfaces studied by x-ray magnetic circular dichroism and first-principles calculations (2010)
  • Author(s): Y.Miura, M.Shirai, T.Saito, T.Katayama, T.Ishikawa, M.Yamamoto, D.Asakura, T.Koide
  • Organizer: 55th Annual Conference on Magnetism & Magnetic Materials
  • Place of Presentation: Atlanta, GA, USA
  • Year and Date: 2010-11-16
• [Presentation] Superconducting proximity effect of spin-triplet pairs in NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN junctions (2010)
  • Author(s): K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts, p. 28, AE-10
  • Place of Presentation: Atlanta, Georgia, USA
  • Year and Date: 2010-11-15
• [Presentation] Giant tunnel magnetoresistance in half-metallic Co_2MnSi-based fully epitaxial magnetic tunnel junctions (2010)
  • Author(s): T.Taira, H.-x.Liu, S.Hirata, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts, pp. 118-119, BH-10
  • Place of Presentation: Atlanta, Georgia, USA
  • Year and Date: 2010-11-15
• [Presentation] Superconducting proximity effect of spin-triplet pairs in NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN junctions (2010)
  • Author(s): K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conference on Magnetism & Magnetic Materials
  • Place of Presentation: Atlanta, GA, USA
  • Year and Date: 2010-11-15
• [Presentation] Giant tunnel magnetoresistance in half-metallic Co_2MnSi-based fully epitaxial magnetic tunnel junctions (2010)
  • Author(s): T.Taira, H.-x.Liu, S.Hirata, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 55th Annual Conference on Magnetism & Magnetic Materials
  • Place of Presentation: Atlanta, GA, USA
  • Year and Date: 2010-11-15
• [Presentation] Tunnel magnetoresistance characteristics of fully epitaxial Co_2MnAl/MgO/CoFe MTJs with various Mn compositions in Co_2MnAl electrodes (2010)
  • Author(s): 李桂芳, 平智幸, 平田進之佑, 松田健一, 植村哲也, 山本眞史
  • Organizer: 日本金属学会2010年秋期(第147回)大会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-09-25
• [Presentation] Highly spin-polarized tunneling in Heusler-alloy-based magnetic tunnel junctions with a Co_2MnSi upper electrode and a MgO barrier (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 2010 Int'l Conf. on Solid State Devices and Materials, Extended Abstract (USB-MEMORY), p. 1122-1123, F-6-4
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-09-24
• [Presentation] Highly spin-polarized tunneling in Heusler-alloy-based magnetic tunnel junctions with a Co_2MnSi upper electrode and a MgO barrier (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 2010 International Conference on Solid State Devices and Materials
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-09-24
• [Presentation] Co_2MnSi/MgO/n-GaAsトンネル接合におけるスピン依存伝導特性 (2010)
  • Author(s): 原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
  • Organizer: 2010年(平成22年)秋季第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2010-09-17
• [Presentation] Tunnel magnetoresistance characteristics of fully epitaxial Co_2MnAl/MgO/CoFe MTJs with various Mn compositions in Co_2MnAl electrodes (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 2010年(平成22年)秋季第71回応用物理学学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2010-09-14
• [Presentation] Giant oscillations in spin-dependent tunneling resistances as a function of barrier thickness in fully epitaxial magnetic tunnel junctions with a MgO barrier (2010)
  • Author(s): 山本眞史, 丸亀孝生, 石川貴之, 平智幸, 松田健一, 植村哲也
  • Organizer: 2010年(平成22年)秋季第71回応用物理学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2010-09-14
• [Presentation] Co_2MnSi/MgO/n-GaAsトンネル接合におけるスピン依存伝導特性 (2010)
  • Author(s): 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)秋季第71回応用物理学学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2010-09-14
• [Presentation] High tunnel magnetoresistance in fully epitaxial Co_<50>Fe_<50>-buffered Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2010)
  • Author(s): H.-x.Liu, T.Taira, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 第34回 日本磁気学会学術講演会
  • Place of Presentation: つくば国際会議場(つくば市)
  • Year and Date: 2010-09-06
• [Presentation] Electrical detection of a non-local signal in Co_2MnSi/MgO/n-GaAs tunnel junctions (2010)
  • Author(s): M.Harada, T.Uemura, T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Organizer: 6^<th> Int'l Conf. on the Physics and Application of Spin Related Phenomena in Semiconductors (PASPS-VI), Abstracts, pp. 259-260, P2-46
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-08-03
• [Presentation] Electrical detection of a non-local signal in Co_2MnSi/MgO/n-GaAs tunnel junctions (2010)
  • Author(s): M.Harada, T.Uemura, T.Akiho, K.-i.Matsuda, M.Yamamoto
  • Organizer: 6^<th> International Conference on the Physics and Application of Spin Related Phenomena in Semiconductors (PASPS-VI)
  • Place of Presentation: Tokyo, Japan
  • Year and Date: 2010-08-03
• [Presentation] ホイスラー合金によるスピン流の創出と制御 (2010)
  • Author(s): 植村哲也, 石川貴之, 原田雅亘, 平智幸, 松田健一, 山本眞史
  • Organizer: 2010年(平成22年)春期第146回日本金属学会講演会講演概要p.156(S6.17)(基調講演)
  • Place of Presentation: つくば市,筑波大学
  • Year and Date: 2010-03-30
• [Presentation] ホイスラー合金によるスピン流の創出と制御(基調講演) (2010)
  • Author(s): 植村哲也, 石川貴之, 原田雅亘, 平智幸, 松田健一, 山本眞史
  • Organizer: 2010年(平成22年)春期第146回日本金属学会講演会
  • Place of Presentation: 筑波大学(つくば市)
  • Year and Date: 2010-03-30
• [Presentation] ホイスラー合金Co_2MnGeを用いた強磁性トンネル接合におけるコンダクタンス特性の薄膜組成依存性 (2010)
  • Author(s): 平田進之佑, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)春期第146回日本金属学会講演会
  • Place of Presentation: 筑波大学(つくば市)
  • Year and Date: 2010-03-30
• [Presentation] Influence of film composition on the saturation magnetization of Co_2MnGe thin films (2010)
  • Author(s): Guifang Li, T.Taira, S.Hirata, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: The 146^<th> Spring Meeting, 2010 The Japan Institute of Metals
  • Place of Presentation: Tsukuba University, Tsukuba
  • Year and Date: 2010-03-30
• [Presentation] Fabrication of Heusler-alloy-based magnetic tunnel junctions having an upper Co_2MnSi electrode with various Mn compositions and having a Co_<50>Fe_<50> lower electrode (2010)
  • Author(s): 劉宏喜, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: The 57^<th> Spring Meeting, 2010, The Japan Society of Applied Physics
  • Place of Presentation: Tokai University, Hiratsuka
  • Year and Date: 2010-03-19
• [Presentation] Co_2MnSi/n-GaAs接合におけるトンネル異方性磁気抵抗効果と結晶磁気異方性に対する接合界面構造依存性 (2010)
  • Author(s): 原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
  • Organizer: 2010年(平成22年)春季第57回応用物理学関係連合講演会
  • Place of Presentation: 東海大学(平塚市)
  • Year and Date: 2010-03-19
• [Presentation] Defects induced in nonstoichiometric Co_2MnGe thin films investigated through saturation magnetization (2010)
  • Author(s): Guifang Li, T.Taira, S.Hirata, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: The 57^<th> Spring Meeting, 2010, The Japan Society of Applied Physics
  • Place of Presentation: Tokai University, Hiratsuka
  • Year and Date: 2010-03-17
• [Presentation] Co_2MnGe/MgO/Co_2MnGe強磁性トンネル接合のスピン依存コンダクタンス特性 (2010)
  • Author(s): 平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)春季第57回応用物理学関係連合講演会
  • Place of Presentation: 東海大学(平塚市)
  • Year and Date: 2010-03-17
• [Presentation] Effect of the Mn composition in Co_2MnSi electrodes on tunnel magnetoresistance characteristics of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2010)
  • Author(s): T.Ishikawa, H.-x.Liu, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 11^<th> Joint MMM-Intermag Conf., Digest, p.1888, HH-04
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2010-01-22
• [Presentation] Effect of the Mn composition in Co_2MnSi electrodes on tunnel magnetoresistance characteristics of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2010)
  • Author(s): 石川貴之, 劉宏喜, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: 11^<th> Joint MMM-Intermag Conference
  • Place of Presentation: Washington, DC, USA
  • Year and Date: 2010-01-22
• [Presentation] Strong bias-voltage dependence of tunneling anisotropic magneto-resistance in epitaxial ferromagnet/n-GaAs junctions (2010)
  • Author(s): T.Uemura, M.Harada, K.-i.Matsuda, M.Yamamoto
  • Organizer: 11^<th> Joint MMM-Intermag Conf., Digest, p.1225, EU-17
  • Place of Presentation: Washington DC, USA
  • Year and Date: 2010-01-21
• [Presentation] Spin-dependent tunneling characteristics of Co_2MnGe/MgO/Co_2MnGe magnetic tunnel junctions (2010)
  • Author(s): 平智幸, 平田進之佑, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 11^<th> Joint MMM-Intermag Conference
  • Place of Presentation: Washington, DC, USA
  • Year and Date: 2010-01-21
• [Presentation] Strong bias-voltage dependence of tunneling anisotropic magneto-resistance in epitaxial ferromagnet/n-GaAs junctions (2010)
  • Author(s): 植村哲也, 原田雅亘, 松田健一, 山本眞史
  • Organizer: 11^<th> Joint MMM-Intermag Conference
  • Place of Presentation: Washington, DC, USA
  • Year and Date: 2010-01-21
• [Presentation] NbN/MgO/Co系ホイスラー合金エピタキシャル三層構造の作製とトンネル特性 (2010)
  • Author(s): 板橋直樹, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-01-09
• [Presentation] Co_2MnGe/MgO/Co_2MnGe強磁性トンネル接合におけるスピン依存コンダクタンス特性の薄膜組成依存性 (2010)
  • Author(s): 平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-01-09
• [Presentation] Co_2MnSi/n-GaAsショットキー接合におけるトンネル異方性磁気抵抗効果 (2010)
  • Author(s): 原田雅亘, 秋保貴史, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-01-09
• [Presentation] NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN接合の作製とその電気伝導特性 (2010)
  • Author(s): 今井悟嗣, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2010年(平成22年)第45回応用物理学会北海道支部学術講演会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2010-01-09
• [Presentation] Effect of nonstoichiometry on saturation magnetization of Heusler alloy Co_2MnGe thin films", p.88(C-31), Jan.8-9, 2010(Presented on) (2010)
  • Author(s): Guifang Li, T.Taira, S.Hirata, Y.Honda, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: The Japan Society of Applied Physics Hokkaido Chapter
  • Place of Presentation: Hokkaido University, Sapporo
  • Year and Date: 2010-01-09
• [Presentation] Co_2MnGe/MgO/Co_2MnGe強磁性トンネル接合のスピン依存トンネル特性 (2009)
  • Author(s): 平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 第33回 日本磁気学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2009-09-12
• [Presentation] Co_2MnSi/MgO/Co_2MnSi強磁性トンネル接合のトンネル磁気抵抗特性に対する薄膜組成比の影響 (2009)
  • Author(s): 石川貴之, 劉宏喜, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: 第33回 日本磁気学会学術講演会
  • Place of Presentation: 長崎大学(長崎市)
  • Year and Date: 2009-09-12
• [Presentation] Fabrication and Transport Properties of NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN Lateral Junctions (2009)
  • Author(s): 今井悟嗣, 松田健一, 石川貴之, 植村哲也, 山本眞史
  • Organizer: 9th International Conference on Materials and Mechanisms of Superconductivity(M2S-IX)
  • Place of Presentation: Shinjuku, Tokyo, Japan
  • Year and Date: 2009-09-11
• [Presentation] Co_2MnGe/MgO/Co_2MnGe強磁性トンネル接合の製作とトンネル磁気抵抗特性 (2009)
  • Author(s): 平智幸, 平田進之佑, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2009年(平成21年)秋季第70回応用物理学会学術講演会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2009-09-10
• [Presentation] Spin-dependent tunneling characteristics of fully eptaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions fabricated as a function of film composition (2009)
  • Author(s): 劉宏喜, 石川貴之, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: 2009年(平成21年)秋季第70回応用物理学会学術講演会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2009-09-10
• [Presentation] NbN/Co_2Cr_<0.6>Fe_<0.4>Al/NbN横型ジョセフソン接合の電気伝導性特性 (2009)
  • Author(s): 松田健一, 今井悟嗣, 石川貴之, 植村哲也, 山本眞史
  • Organizer: 2009年(平成21年)秋季第70回応用物理学会学術講演会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2009-09-10
• [Presentation] エピタキシャルCo_2MnSi/n-GaAs接合における異方性磁気抵抗 (2009)
  • Author(s): 原田雅亘, 植村哲也, 松田健一, 山本眞史
  • Organizer: 2009年(平成21年)秋季第70回応用物理学会学術講演会
  • Place of Presentation: 富山大学(富山市)
  • Year and Date: 2009-09-10
• [Presentation] Spin-dependent tunneling in half-metallic Heusler alloy-based magnetic tunnel junctions with a MgO barrier (2009)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, T.Marukame, K.-i.Matsuda, T.Uemura
  • Organizer: Int'l Conf. on Magnetism (ICM2009), Abstract, p.155, Tu-JPH6-01[Invited Talk]
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Spin-dependent tunneling in half-metallic Heusler alloy-based magnetic tunnel junctions with a MgO barrier[Invited Talk] (2009)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, T.Marukame, K.-i.Matsuda, T.Uemura
  • Organizer: Int'l Conf on Magnetism(ICM2009)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Tunneling spectroscopy of magnetic tunnel junctions with Heusler alloy Co_2MnGe electrodes and a MgO barrier (2009)
  • Author(s): S.Hirata, T.Taira, T.Ishikawa, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: Int'l Conf. on Magnetism (ICM2009), Abstract, p.54, Mo-A-5.4-07
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Transport properties of a junction consisting of two NbN electrodes coupled by a Co-based Heusler alloy Co_2Cr_<0.6>Fe_<0.4>Al channel (2009)
  • Author(s): 松田健一, 今井悟嗣, 石川貴之, 植村哲也, 山本眞史
  • Organizer: Int'l Conf on Magnetism(ICM2009)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Spin-dependent electonic structure of Heusler alloy Co_2MnSi upper electrodes in magnetic tunnel junctions (2009)
  • Author(s): 石川貴之, 板橋直樹, 平智幸, 松田健一, 植村哲也, 山本眞史
  • Organizer: Int'l Conf on Magnetism(ICM2009)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Tunneling spectroscopy of magnetic tunnel junctions with Heusler alloy Co_2MnGe electrodes and a MgO barrier (2009)
  • Author(s): 平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: Int'l Conf on Magnetism(ICM2009)
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Tunneling anisotropic magneto-resistance in an epitaxial Co_2MnSi/n-GaAs junction (2009)
  • Author(s): M.Harada, T.Uemura, Y.Imai, K.-i.Matsuda, M.Yamamoto
  • Organizer: The 14th Int'l Conference on Modulated Semiconductor Structures (MSS-14), Abstract, p. 195, M5e
  • Place of Presentation: Kobe
  • Year and Date: 2009-07-22
• [Presentation] Spin-dependent tunneling characteristics of fully epitaxial Co_2MnGe/MgO/Co_2MnGe magnetic tunnel junctions (2009)
  • Author(s): 平智幸, 平田進之佑, 石川貴之, 松田健一, 植村哲也, 山本眞史
  • Organizer: 20th Int'l Colloquium on Magnetic Films and Surfaces(ICMFS2009)
  • Place of Presentation: Berlin, Germany
  • Year and Date: 2009-07-22
• [Presentation] Tunneling anisotropic magneto-resistance in an epitaxial Co_2MnSi/n-GaAs junction (2009)
  • Author(s): 原田雅亘, 植村哲也, 今井洋介, 松田健一, 山本眞史
  • Organizer: 14th International Conference on Modulated Semiconductor structures(MSS-14)
  • Place of Presentation: Kobe, Japan
  • Year and Date: 2009-07-22
• [Presentation] Tunneling Anisotropic Magneto-resistance in an Epitaxial CoFe/n-GaAs Junction (2009)
  • Author(s): 植村哲也, 今井洋介, 原田雅亘, 松田健一, 山本眞史
  • Organizer: IEEE International Magnetics Conference 2009
  • Place of Presentation: Sacramento, CA, USA
  • Year and Date: 2009-05-05
• [Presentation] Simulation of tunneling magnetoresistance used to detect domain-wall structure and motion in a ferromagnetic wire (2009)
  • Author(s): K.Sawada, T.Uemura, M.Masuda, K.-i.Matsuda, M.Yamamoto
  • Organizer: IEEE International Magnetics Conference 2009
  • Place of Presentation: Sacramento, CA, USA
  • Year and Date: 2009-05-05
• [Presentation] エピタキシャルCoFe/n-GaAs接合における磁気抵抗特性 (2009)
  • Author(s): 今井洋介, 原田雅亘, 植村哲也, 松田健一, 山本眞史
  • Organizer: 2009年(平成21年)春季第56回応用物理学会関係連合講演会
  • Place of Presentation: 筑波大学(つくば市)
  • Year and Date: 2009-04-01
• [Presentation] 強磁性細線中を伝搬する磁壁の構造および運動のTMR検出のシミュレーション (2009)
  • Author(s): 澤田圭佑
  • Organizer: 2009年(平成21年) 春季第56回応用物理学会関係連合講演会
  • Place of Presentation: つくば市、筑波大学
  • Year and Date: 2009-03-31
• [Presentation] エピタキシャルCoFe/n-GaAs接合における磁気抵抗特性 (2009)
  • Author(s): 今井洋介
  • Organizer: The 13^<th> Symposiumu on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS13)
  • Place of Presentation: 仙台市, 東北大学
  • Year and Date: 2009-01-28
• [Presentation] Co_2Cr_<0.6>Fe_<0.4>A1/MgO/Co_<50>Fe_<50>強磁性トンネル接合のコンダクタンス特性に対するアニールの影響 (2009)
  • Author(s): 米村和希
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] Co_2Cr_<0.6>Fe_0.4A1/MgO/Co_2Cr_<0.6>Fe_<0.4>A1強磁性トンネル接合のスピン依存コンダクタンス特性 (2009)
  • Author(s): 板橋直樹
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] ホイスラー合金薄膜を上部フリー層に用いた微細MTJの作製と評価 (2009)
  • Author(s): 増田昌洋
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] CoFe/n-GaAs/CoFe横型接合における磁気抵抗特性 (2009)
  • Author(s): 今井洋介
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] Co2MnSi細線電極における磁壁構造に依存したトンネル磁気抵抗のシミュレーション (2009)
  • Author(s): 澤田圭佑
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] ハーフメタル系強磁性体(Co_2Cr_<0.6>Fe_<0.4>A1)/超伝導体(NbN)二層薄膜のエピタキシャル成長 (2009)
  • Author(s): 今井悟嗣
  • Organizer: 2009年(平成21年) 第44回応用物理学会北海道支部学術講演会
  • Place of Presentation: 函館市, サン・リフレ函館
  • Year and Date: 2009-01-09
• [Presentation] ホイスラー合金を用いた強磁性トンネル接合のスピン依存トンネル特性 (2009)
  • Author(s): 山本眞史
  • Organizer: 日本金属学会第3分科会シンポジウム予稿pp.5-8(依頼講演)
  • Place of Presentation: 仙台市,東北大学
  • Year and Date: 2009-01-06
• [Presentation] ホイスラー合金を用いた強磁性トンネル接合のスピン依存トンネル特性(依頼講演) (2009)
  • Author(s): 山本眞史
  • Organizer: 日本金属学会第3分科会シンポジウム
  • Place of Presentation: 仙台市, 東北大学
  • Year and Date: 2009-01-06
• [Presentation] Spin-dependent tunneling in half-metallic Heusler alloy-based magnetic tunnel junctions with a MgO barrier (2009)
  • Author(s): M.Yamamoto, T.Ishikawa, T.Taira, T.Marukame, K.-i.Matsuda, T.Uemura
  • Organizer: Int'l Conf on Magnetism (ICM2009)
  • Place of Presentation: Karlsruhe, Germany(Invited Talk)
• [Presentation] Tunneling spectroscopy of fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2008)
  • Author(s): T. Ishikawa
  • Organizer: 2008 Material Research Society (MRS) Fall Meeting
  • Place of Presentation: Boston, MA, USA
  • Year and Date: 2008-12-03
• [Presentation] Spin-polarized tunneling in fully epitaxial magnetic tunnel junctions with Heusler alloy thin films and a MgO barrier (2008)
  • Author(s): M.Yamamoto, T.Ishikawa, K.-i.Matsuda, T.Uemura
  • Organizer: 2008 Material Research Society (MRS) Fall Meeting, Abstracts, L2.6, Boston[Invited Talk]
  • Place of Presentation: MA, USA
  • Year and Date: 2008-12-02
• [Presentation] Tunneling conductance characteristics for Co_2Cr_<0.6>Fe_<0.4>A1/MgO/Co_2Cr_<0.6>Fe_<0.4>A1 magnetic tunnel junction (2008)
  • Author(s): N. Itabashi
  • Organizer: 2008 Material Research Society (MRS) Fall Meeting
  • Place of Presentation: Boston, MA, USA
  • Year and Date: 2008-12-02
• [Presentation] Spin-polarized tunneling in fully epitaxial magnetic tunnel junctions with Heusler alloy thin films and a MgO barrier (Invited) (2008)
  • Author(s): M. Yamamoto
  • Organizer: 2008 Material Research Society (MRS) Fall Meeting
  • Place of Presentation: Boston, MA, USA
  • Year and Date: 2008-12-02
• [Presentation] Tunnel magnetoresistance characteristics of post-deposition-annealed Co_2MnGe/MgO/CoFe tunnel junctions (2008)
  • Author(s): T. Taira
  • Organizer: 2008 Material Research Society (MRS) Fall Meeting
  • Place of Presentation: Boston, MA, USA
  • Year and Date: 2008-12-02
• [Presentation] Spin-dependent electronic structures of Co_2Cr_<0.6>Fe_<0.4>A1 electrodes investigated through tunneling spectroscopy (2008)
  • Author(s): N. Itabashi
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-14
• [Presentation] High energy high resolution photoemission spectroscopy of Heusler compounds (2008)
  • Author(s): A. Gloskovskii
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-13
• [Presentation] Tunneling spectroscopy of Co_2Cr_<0.6>Fe_<0.4>A1/MgO/CoFe magnetic tunnel junctions (2008)
  • Author(s): K. Yonemura
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-13
• [Presentation] Structural characterizations of Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2008)
  • Author(s): T. Nakatani
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-13
• [Presentation] Spin-dependent tunneling characteristics of Co_2MnGe/MgO/CoFe tunnel junctions (2008)
  • Author(s): T.Taira, T.Ishikawa, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 53rd Magnetism and Magnetic Materials Conf., Abstracts, p. 230, DD-02, Austin
  • Place of Presentation: TX, USA
  • Year and Date: 2008-11-12
• [Presentation] Half-metallic electronic structure of Co_2MnSi electrodes proved by tunneling spectroscopy (2008)
  • Author(s): T.Ishikawa, N.Itabashi, T.Taira, K.-i.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: 53rd Magnetism and Magnetic Materials Conf., Abstracts, p. 232, DD-07[Invited Talk]
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-12
• [Presentation] Spin-dependent tunneling characteristics of Co_2MnGe/MgO/CoFe tunnel junctions (2008)
  • Author(s): T. Taira
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-12
• [Presentation] Half-metallic electronic structure of Co_2MnSi electrodes proved by tunneling spectroscopy (Invited) (2008)
  • Author(s): T. Ishikawa
  • Organizer: 53^<rd> Magnetism and Magnetic Materials Conference
  • Place of Presentation: Austin, TX, USA
  • Year and Date: 2008-11-12
• [Presentation] Fabrication of fully epitaxial magnetic tunnel junctions with half-metallic Heusler alloy thin films and a MgO tunnel barrier (Invited) (2008)
  • Author(s): M. Yamamoto
  • Organizer: The 10^<th> Intl Joint Symposium between Hokkaido University and Chungnam National University
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2008-10-23
• [Presentation] 透過電子顕微鏡によるホイスラー合金Co_2MnSiを用いた強磁性トンネル接合の解析 (2008)
  • Author(s): 中谷友也
  • Organizer: 日本金属学会2008年秋期講演大会
  • Place of Presentation: Maddd, Spaim
  • Year and Date: 2008-09-24
• [Presentation] MgOバリアと界面を有するCo_2MnGe薄膜のXMCD測定 (2008)
  • Author(s): 朝倉大輔
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手県盛岡市, 岩手大学
  • Year and Date: 2008-09-21
• [Presentation] Co2Cr_<0.6.Fe_<0.4>A1/MgO/Co_2Cr_<0.6>Fc_<0.4>A1強磁性トンネル接合のスピン依存トンネルスペクトロスコピー (2008)
  • Author(s): 板橋直樹
  • Organizer: 第32回日本磁気学会学術講演会
  • Place of Presentation: 宮城県多賀城市, 東北学院大学
  • Year and Date: 2008-09-14
• [Presentation] Co_2MnSi電極を用いた強磁性トンネル接合におけるスピン依存コンダクタンス特性 (2008)
  • Author(s): 石川貴之, 板橋直樹, 平智幸, 松田健二, 植村哲也, 山本眞史
  • Organizer: 第32回日本磁気学会学術講演会概要集,13pB-10,学生講演賞(桜井講演賞)受賞
  • Place of Presentation: 宮城県多賀城市(東北学院大学)
  • Year and Date: 2008-09-13
• [Presentation] Co_2MnGe/MgO/Co_<50>Fe_<50>強磁性トンネル接合のトンネル磁気抵抗特性の改善 (2008)
  • Author(s): 平智幸
  • Organizer: 第32回日本磁気学会学術講演会
  • Place of Presentation: 宮城県多賀城市,東北学院大学
  • Year and Date: 2008-09-13
• [Presentation] Co_2MnSi電極を用いた強磁性トンネル接合におけるスピン依存コンダクタンス特性 (2008)
  • Author(s): 石川貴之
  • Organizer: 第32回日本磁気学会学術講演会
  • Place of Presentation: 宮城県多賀城市,東北学院大学
  • Year and Date: 2008-09-13
• [Presentation] Nb/PdNi二層膜およびNb/PdMNbジョセフソン接合の電気伝導特性 (2008)
  • Author(s): 松田健一
  • Organizer: 2008年(平成20年) 秋季第69回応用物理学会学術講演会講演予稿集
  • Place of Presentation: 愛知県春日井市、中部大学
  • Year and Date: 2008-09-05
• [Presentation] Co_2MnGeZMgO/Co_<50>Fe_<50>強磁性トンネル接合のコンダクタンス特性 (2008)
  • Author(s): 平智幸
  • Organizer: 2008年(平成20年) 秋季第69回応用物理学会学術講演会講演予稿集
  • Place of Presentation: 愛知県春日井市、中部大学
  • Year and Date: 2008-09-05
• [Presentation] Co_2MnSi/MgO/Co_2MnSi MTJのスピン依存トンネル特性に対するアニール効果 (2008)
  • Author(s): 石川貴之
  • Organizer: 2008年(平成20年) 秋季第69回応用物理学会学術講演会講演予稿集
  • Place of Presentation: 愛知県春日井市、中部大学
  • Year and Date: 2008-09-04
• [Presentation] Co_2Cr_<0.6>Fe_<0.4>A1/MgO/Co_<50>Fe_<50>強磁性トンネル接合のスピン依存トンネル特性 (2008)
  • Author(s): 米村和希
  • Organizer: 2008年(平成20年) 秋季第69回応用物理学会学術講演会講演予稿集
  • Place of Presentation: 愛知県春日井市、中部大学
  • Year and Date: 2008-09-04
• [Presentation] Spin-dependent tunneling spectroscopy of fully epitaxial magnetic tunnel junctions with Heusler alloy Co_2Cr_<0.6>Fe_<0.4>AI electrodes and a MgO barrier (2008)
  • Author(s): N. Itabashi
  • Organizer: 25^<th> Int'l Conf. on Low Temp. Physics
  • Place of Presentation: Amsterdam, The Netherlands
  • Year and Date: 2008-08-11
• [Presentation] Transport Properties of Nb/PdNi bilayers and Nb/PdNi/Nb Josephson junctions (2008)
  • Author(s): K.-i. Matsuda
  • Organizer: 25^<th> Int'l Conf. on Low Temp. Physics
  • Place of Presentation: Amsterdam, The Netherlands
  • Year and Date: 2008-08-07
• [Presentation] ハーフメタル系ホイスラー合金を用いた強磁性トンネル接合デバイス (2008)
  • Author(s): 山本眞史, 植村哲也, 松田健一
  • Organizer: 日本学術振興会 薄膜第131委員会 第241回研究会資料(依頼講演)
  • Place of Presentation: 北海道釧路市
  • Year and Date: 2008-06-27
• [Presentation] ハーフメタル系ホイスラー合金を用いた強磁性トンネル接合デバイス(依頼講演) (2008)
  • Author(s): 山本眞史
  • Organizer: 日本学術振興会薄膜第131委員会第241回研究会
  • Place of Presentation: 北海道釧路市,釧路プリンスホテル
  • Year and Date: 2008-06-27
• [Presentation] Spin-dependent tunneling conductance in fully epitaxial Co_2MnSi/MgO/Co_2MnSi tunnel junctions (2008)
  • Author(s): T.Ishikawa, N.Itabashi, K.Matsuda, T.Uemura, M.Yamamoto
  • Organizer: IEEE Int'l Magnetics Conf. Europe 2008, Technical Digests, p. 33, AC-07
  • Place of Presentation: Madrid, Spain
  • Year and Date: 2008-05-05
• [Presentation] Spin-dependent tunneling conductance in fully epitaxial Co_2MnSi/MgO/Co_2MnsI tunnel junctions (2008)
  • Author(s): T. Ishikawa
  • Organizer: IEEE Int'l Magnetics Conf. Europe 2008
  • Place of Presentation: Madrid, Spain
  • Year and Date: 2008-05-05
• [Presentation] Fabrication and characterization of magnetic tunnel junction field sensors with a Co_2MnSi thin film (2008)
  • Author(s): M. Masuda
  • Organizer: IEEE Int'l Magnetics Conf. Europe 2008
  • Place of Presentation: Madrid, Spain
  • Year and Date: 2008-05-05
• [Presentation] エピタキシャル強磁性トンネル接合におけるCo_2MnSi電極のハーフメタル特性 (2008)
  • Author(s): 石川貴之
  • Organizer: 第55回応用物理学関係連合講演会
  • Place of Presentation: 船橋市、日本大学船橋キャンパス
  • Year and Date: 2008-03-29
• [Presentation] Co_2MnSi/MgO/Co_2MnSi強磁性トンネル接合のコンダクタンス特性 (2008)
  • Author(s): 板橋直樹
  • Organizer: 第55回応用物理学関係連合講演会
  • Place of Presentation: 船橋市、日本大学船橋キャンパス
  • Year and Date: 2008-03-29
• [Presentation] Heusler alloy-based fully epitaxial magnetic tunnel junctions with a MgO barrier (2008)
  • Author(s): M. Yamamoto
  • Organizer: 2008 RCIQE Int'l Seminar on "Advanced Semiconductor Materials and Devices"
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-03-04
• [Presentation] エピタキシャルCo_2MnSi/MgO/n-GaAsトンネル接合の特性評価 (2008)
  • Author(s): 河岸沙織
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] Co_2MnSi/MgO/Co_2MnSiエピタキシャル強磁性トンネル接合のトンネル磁気抵抗特性 (2008)
  • Author(s): 石川貴之
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] ホイスラー合金Co_2MnZ(Z=Si,Ge)薄膜を用いた強磁性トンネル接合におけるトンネル磁気抵抗特性の薄膜組成依存性 (2008)
  • Author(s): 袴田真矢
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] CoFe/MgO/CoFe強磁性トンネル接合におけるトンネル磁気抵抗のMgOバリア膜厚依存性 (2008)
  • Author(s): 平智幸
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] Co_2MnSi/MgO強磁性トンネル接合のスピン依存トンネル抵抗のバイアス電圧依存性 (2008)
  • Author(s): 板橋直樹
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] Co_2Cr_<0.6>Fe_<0.4>A1/MgO/Co_<50>Fe_<50>強磁性トンネル接合のスピン依存トンネル抵抗のMgOバリア膜厚に対する振動的依存性 (2008)
  • Author(s): 米村和希
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] ホイスラー合金Co_2MnSi薄膜を用いた強磁性トンネル接合型磁気センサーの製作と評価 (2008)
  • Author(s): 増田昌洋
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] GaAs上に成長したCo_2MnSi薄膜の構造および磁気特性に対するMgO層挿入の効果 (2008)
  • Author(s): 今井洋介
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-11
• [Presentation] Nb/強磁性体PdNi/Nbジョセフソン接合の電流-電圧特性の温度依存性および強磁性膜厚依存性 (2008)
  • Author(s): 秋元陽介
  • Organizer: 第43回応用物理学会北海道支部学術講演会
  • Place of Presentation: 札幌市、北海道大学
  • Year and Date: 2008-01-10
• [Presentation] GaAs上にMgO層を介して成長したCo_2MnSi薄膜の特性評価 (2007)
  • Author(s): 今井洋介
  • Organizer: The 12th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-12)
  • Place of Presentation: 吹田市、大阪大学
  • Year and Date: 2007-12-21
• [Presentation] Magnetic and transport properties of superconductor/ferromagnet bilayer microbridges (2007)
  • Author(s): K.-i. Matsuda
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-09
• [Presentation] Highly spin-polarized tunneling in Heusler alloy-based fully epitaxial magnetic tunnel junctions with a MgO tunnel barrier (2007)
  • Author(s): M. Yamamoto
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-07
• [Presentation] Oscillations in tunneling resistance as a function of MgO barrier thickness in fully epitaxial magnetic tunnel junctions of Co_2Cr_<0.6>Fe_<0.4>Al/MgO/Co_<50>Fe_<50> (2007)
  • Author(s): M. Yamamoto
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-06
• [Presentation] Spin-dependent tunneling in fully epitaxial Co_2MnSi/MgO/Co_2MnSi magnetic tunnel junctions (2007)
  • Author(s): T. Ishikawa
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-06
• [Presentation] Electronic and magnetic properties of Heusler alloy Co_2MnSi epitaxial ultrathin films facing a MgO barrier investigated by X-ray magnetic circular dichroism (2007)
  • Author(s): T. Saito
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-06
• [Presentation] Electrical characterization of epitaxial Co_2MnSi/MgO/n-GaAs tunnel junctions (2007)
  • Author(s): S. Kawagishi
  • Organizer: The 52nd Magnetism and Magnetic Materials Conference
  • Place of Presentation: Tampa, Florida, USA
  • Year and Date: 2007-11-06
• [Presentation] ホイスラー合金/MgOエピタキシャルMTJにおけるスピン偏極トンネリング (2007)
  • Author(s): 石川貴之
  • Organizer: 日本応用磁気学会「スピンエレクトロニクス専門研究会」第17回研究会
  • Place of Presentation: 仙台市、東北大学
  • Year and Date: 2007-11-02
• [Presentation] Co_2MnZ(Z=Si,Ge)/MgO/Co_<50>Fe_<50>強磁性トンネル接合のTMR特性の薄膜組成依存性 (2007)
  • Author(s): 袴田真矢
  • Organizer: 第31回日本応用磁気学会学術講演会
  • Place of Presentation: 東京都豊島区、学習院大学
  • Year and Date: 2007-09-11
• [Presentation] Co_2MnSi/MgO/Co_2MnSi強磁性トンネル接合の製作とトンネル磁気抵抗特性 (2007)
  • Author(s): 石川貴之
  • Organizer: 第31回日本応用磁気学会学術講演会
  • Place of Presentation: 東京都豊島区、学習院大学
  • Year and Date: 2007-09-11
• [Presentation] Co_2MnSi薄膜を用いた強磁性トンネル接合型磁気センサーの製作 (2007)
  • Author(s): 植村哲也
  • Organizer: 第31回日本応用磁気学会学術講演会
  • Place of Presentation: 東京都豊島区、学習院大学
  • Year and Date: 2007-09-11
• [Presentation] ホイスラー合金MTJにおけるスピン依存トンネル抵抗のMgOバリア膜厚に対する振動的依存性 (2007)
  • Author(s): 丸亀孝生
  • Organizer: 第31回日本応用磁気学会学術講演会
  • Place of Presentation: 東京都豊島区、学習院大学
  • Year and Date: 2007-09-11
• [Presentation] MgO障壁と界面を形成するホイスラー合金Co_2MnSiエピタキシャル極薄膜のXASおよびXMCD (2007)
  • Author(s): 斉藤敏明
  • Organizer: 第31回日本応用磁気学会学術講演会
  • Place of Presentation: 東京都豊島区、学習院大学
  • Year and Date: 2007-09-11
• [Presentation] GaAs上にMgO層を介して成長したCo_2MnSi薄膜の構造および磁気特性評価 (2007)
  • Author(s): 今井洋介
  • Organizer: 第68回応用物理学会学術講演会
  • Place of Presentation: 札幌市、北海道工業大学
  • Year and Date: 2007-09-05
• [Presentation] Co_2MnSi薄膜を上部フリー層に用いたエピタキシャルMTJの製作と評価 (2007)
  • Author(s): 増田昌洋
  • Organizer: 第68回応用物理学会学術講演会
  • Place of Presentation: 札幌市、北海道工業大学
  • Year and Date: 2007-09-05
• [Presentation] CoFe/MgO/CoFe強磁性トンネル接合におけるトンネル磁気抵抗のMgOバリア膜厚依存性 (2007)
  • Author(s): 平智幸
  • Organizer: 第68回応用物理学会学術講演会
  • Place of Presentation: 札幌市、北海道工業大学
  • Year and Date: 2007-09-05
• [Presentation] Epitaxial growth and characterization of Co_2MnSi thin films on GaAs with Mgo interlayer (2007)
  • Author(s): T. Uemura
  • Organizer: The 13th Int'l Conf. on Modulated Semiconduct or Structures
  • Place of Presentation: Genova, Italy
  • Year and Date: 2007-07-17
• [Presentation] Four-state Magnetic Random Access Memory and Ternary Content Addressable Memory using CoFe-based Magnetic Tunnel Junctions (2007)
  • Author(s): T. Uemura
  • Organizer: 37th Int'l Symposium om Multiple-Valued Logic
  • Place of Presentation: Oslo, Norway
  • Year and Date: 2007-05-15
• [Book] Highly Spin-Polarized Tunneling in Fully Epitaxial Magnetic Tunnel Junctions with a Co-Based Full-Heusler Alloy Thin Film and a MgO Barrier(Advances in Solid State Physics 47)(R. Haug (Ed.)) (2008)
  • Author(s): M.Yamamoto, T.Marukame, T.Ishikawa, K.-i.Matsuda, T.Uemura
  • Publisher: Springer Berlin/Heidelberg
• [Book] Advances in Solid State Physics, vol.47(R.Haug (Ed.), Highly Spin-Polarized Tunneling in Fully Epitaxial Magnetic Tunnel Junctions with a Co-Based Full-Heusler Alloy Thin Film and a MgO Barrier) (2008)
  • Author(s): M.Yamamoto, T.Marukame, T.Ishikawa, K.-i.Matsuda, T.Uemura
  • Publisher: Springer
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