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2010 Fiscal Year Final Research Report

Spin-polarized-current-controlled devices

Planned Research

  • PDF
Project AreaCreation and control of spin current
Project/Area Number 19048018
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionThe University of Tokyo

Principal Investigator

TANAKA Masaaki  The University of Tokyo, 大学院・工学系研究科, 教授 (30192636)

Co-Investigator(Kenkyū-buntansha) OHYA Shinobu  東京大学, 大学院・工学系研究科, 准教授 (20401143)
Co-Investigator(Renkei-kenkyūsha) YOSHIDA Hiroshi  大阪大学, 大学院・基礎工学研究科, 教授 (30133929)
SATO Kazunori  大阪大学, 大学院・基礎工学研究科, 准教授 (60379097)
Project Period (FY) 2007 – 2010
Keywordsスピン流デバイス
Research Abstract

The objective of this research is to create materials and devices with nonvolatile memory and reconfigurable functions, in particular, spin-polarized-current-controlled devices. By introducing magnetic elements and ferromagnetic materials into semiconductors and device structures, we fabricate new functional materials and devices that use spin degrees of freedom as well as charge transport of carriers, particularly spin-polarized currents. More specifically, we establish the basic material and process technologies of, 1) III-V based heterojunction-type spin transistors, 2) group-IV based MOSFET-type spin devices, and 3) single-electron spin transistors based on ferromagnetic nanoparticles/semiconductor granular materials.

  • Research Products

    (33 results)

All 2011 2010 2009 2008 2007 Other

All Journal Article (16 results) Presentation (2 results) Book (5 results) Remarks (8 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Nearly non-magnetic valence band of the ferromagnetic semiconductor GaMnAs2011

    • Author(s)
      S.Ohya, Kenta Takata, M.Tanaka
    • Journal Title

      Nature Physics 7

      Pages: 342-347

  • [Journal Article] Phase decomposition diagram of magnetic alloy semiconductor2011

    • Author(s)
      Pham Nam Hai, Shinsuke Yada, Masaaki Tanaka
    • Journal Title

      J.Appl.Phys. 109

      Pages: 073919-1-"073919-9"

  • [Journal Article] Single-Crystalline Ferromagnetic Alloy Semiconductor Ge_<1-x>Mn_x Grown on Ge (111)2010

    • Author(s)
      Shinsuke Yada, Ryohei Okazaki, Shinobu Ohya, Masaaki Tanaka
    • Journal Title

      Applied Physics Express 3

      Pages: 123002-1-"123002-3"

  • [Journal Article] Magnetoresistance of a Spin Metal-Oxide-Semiconductor Field-Effect Transistor with Ferromagnetic MnAs Source and Drain Contacts2010

    • Author(s)
      R.Nakane, T.Harada, K.Sugiura, S.Sugahara, M.Tanaka
    • Journal Title

      Jpn.J.Appl.Phys. 49

      Pages: 113001-1-"113001-3"

  • [Journal Article] Long spin-relaxation time in a single metal nanoparticle2010

    • Author(s)
      Pham Nam Hai, Shinobu Ohya, Masaaki Tanaka
    • Journal Title

      Nature Nanotechnology 5

      Pages: 593-596

  • [Journal Article] Valence-Band Structure of the Ferromagnetic Semiconductor GaMnAs Studied by Spin-Dependent Resonant Tunneling Spectroscopy2010

    • Author(s)
      Shinobu Ohya, Iriya Muneta, Pham Nam Hai, Masaaki Tanaka
    • Journal Title

      Phys.Rev.Lett. 104

      Pages: 167204-1-"167204-4"

  • [Journal Article] Quantum-level control in a III-V-based ferromagnetic-semiconductor heterostructure with a GaMnAs quantum well and double barriers2010

    • Author(s)
      Shinobu Ohya, Iriya Muneta, Masaaki Tanaka
    • Journal Title

      Appl.Phys.Lett. 96

      Pages: 052505-1-"052505-3"

  • [Journal Article] Electromotive force and huge magnetoresistance in magnetic tunnel junctions2009

    • Author(s)
      Pham Nam Hai, Shinobu Ohya, Masaaki Tanaka, Stewart E.Barnes, Sadamichi Maekawa
    • Journal Title

      Nature 458

      Pages: 489-492

  • [Journal Article] Computational nano-materials design for the wide band-gap and high-Tc semiconductor spintronics2008

    • Author(s)
      H.Katayama-Yoshida, K.Sato, T.Fukushima, M.Toyoda, H.Kizaki, V.A.Dinh
    • Journal Title

      Semiconductors and Semimetals 82

      Pages: 433-454

  • [Journal Article] Nature of magnetic coupling between Mn ions in as-grown Ga1-xMnxAs studied by x-ray magnetic circular dichroism2008

    • Author(s)
      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
    • Journal Title

      Phys.Rev.Lett. 100

      Pages: 247202

  • [Journal Article] Spin valve effect by ballistic transport in ferromagnetic metal(MnAs)/semiconductor (GaAs) hybrid heterostructures2008

    • Author(s)
      Pham Nam Hai, Yusuke Sakata, Masafumi Yokoyama, Shinobu Ohya, Masaaki Tanaka
    • Journal Title

      Phys.Rev.B 77

      Pages: 214435-1-"214435-6"

  • [Journal Article] Spin-dependent transport properties in GaMnAs-based spin hot-carrier transistors2007

    • Author(s)
      Y.Mizuno, S.Ohya, P.N.Hai, M.Tanaka
    • Journal Title

      Appl.Phys.Lett. 90

      Pages: 162505-1-"162505-3"

  • [Journal Article] Quantum-size effect and tunneling magnetoresistance in ferromagnetic-semiconductor quantum heterostructures2007

    • Author(s)
      S.Ohya, P.N.Hai, Y.Mizuno, M.Tanaka
    • Journal Title

      Phys.Rev.B 75

      Pages: 155328-1-"155328-6"

  • [Journal Article] Metal-Oxide-Semiconductor Based Spin Devices for Reconfigurable Logic2007

    • Author(s)
      M.Tanaka, S.Sugahara
    • Journal Title

      Invited paper in the Special Issue on Spintronics, IEEE Transactions on Electron Devices Vol.54(Invited paper)

      Pages: 961-976

  • [Journal Article] Reconfigurable Logic Gates Using Single Electron Spin Transistors2007

    • Author(s)
      Pham Nam Hai, S.Sugahara, M.Tanaka
    • Journal Title

      Jpn.J.Appl.Phys. 46

      Pages: 6579-6585

  • [Journal Article] Design of colossal solubility of magnetic impurities for semiconductor spintronics by the co-doping method2007

    • Author(s)
      K.Sato, H.Katayama-Yoshida
    • Journal Title

      Jpn.J.Appl.Phys. 46

      Pages: L1120-L1122

  • [Presentation] Properties and functionalities of MnAs-nanoparticle/III-V-semiconductor hybrid structures : Spin transport, magnetoresistance, and electromotive force2010

    • Author(s)
      Masaaki Tanaka
    • Organizer
      IEEE 7th International Symposium on Metallic Multilayers
    • Place of Presentation
      Berkeley, USA
    • Year and Date
      20100919-20100924
  • [Presentation] Spin dependent transport in III-V magnetic heterostructures2008

    • Author(s)
      M.Tanaka
    • Organizer
      Spintronics 2008, Spin Sensing and Devices, SPIE Optics & Photonics Symposium
    • Place of Presentation
      San Diego
    • Year and Date
      20080810-20080814
  • [Book] Spintronic Devices Based on Semiconductors(Comprehensive Semiconductor Science and Technology)Vol.62011

    • Author(s)
      Masaaki Tanaka, Shinobu Ohya
    • Total Pages
      540-562
    • Publisher
      Elsevier (Amsterdam)
  • [Book] III-V and Group-IV Based Ferromagnetic Semiconductors for Spintronics(Comprehensive Nanoscience and Technology)Vol.42011

    • Author(s)
      M.Tanaka, S.Ohya, Y.Shuto, S.Yada, S. Sugahara
    • Total Pages
      447-462
    • Publisher
      Academic Press (Oxford)
  • [Book] Properties and Functionalities of MnAs/III-V Hybrid and Composite Structures(Chapter 11 in Semiconductors and Semimetals)Volume 822008

    • Author(s)
      Masaaki Tanaka, Masafumi Yokoyama, Pham Nam Hai, Shinobu Ohya
    • Total Pages
      455-485
    • Publisher
      Elsevier
  • [Book] TMR in Semiconductors(Handbook of Magnetism and Advanced Magnetic Materials)Vol.52007

    • Author(s)
      S.Ohya, M.Tanaka
    • Total Pages
      3064
    • Publisher
      Spintronics and Magnetoelectronics, John Wiley & Sons Ltd.(Chichester, UK)
  • [Book] Proceedings of the 4th International Conference on the Physics and Applications of Spin-related Phenomena in Semiconductors(Special Issure of physica status solidi)2007

    • Author(s)
      M.Tanaka, K.M.Itoh, S.Katsumoto, M.Shirai, H.Munekata.
    • Publisher
      Wiley VCH
  • [Remarks] ホームページ等

    • URL

      http://www.cryst.t.u-tokyo.ac.jp/

  • [Remarks]

    • URL

      http://www.u-tokyo.ac.jp/coe/english/achievements/report01.html

  • [Remarks] 受賞

  • [Remarks] 40th International Conference on Solid State Devices and Materials (SSDM2008) Young Researcher Award、Pham Nam Hai 2009年9月 41st SSDMにて受賞式

  • [Remarks] 東京大学総長賞、総長特別賞、東京大学工学系研究科長賞・最優秀賞 ファムナムハイ 2009年3月23日 「Spin dependent transport phenomena in III-V semiconductor heterostructures with ferromagnetic MnAs nano-scale particles」に関する一連の研究業績に対して

  • [Remarks] 応用物理学会講演奨励賞、大矢忍、2007年3月

  • [Remarks] 第3回日本学術振興会賞 田中雅明、2007年3月

  • [Remarks] 第20回先端技術大賞(学生部門最優秀賞) ファムナムハイ、2006年7月

  • [Patent(Industrial Property Rights)] 論理回路および単電子スピントランジスタ2010

    • Inventor(s)
      ファムナムハイ, 菅原聡, 田中雅明
    • Industrial Property Rights Holder
      科学技術振興機構
    • Industrial Property Number
      特許,特許第4574675号
    • Acquisition Date
      2010-08-27
  • [Patent(Industrial Property Rights)] 磁気-電気のエネルギー変換装置、起電力発生装置、および磁気センサー装置2009

    • Inventor(s)
      ファムナムハイ、大矢忍、田中雅明、Stewart E.Barnes、前川禎通
    • Industrial Property Rights Holder
      東京大学
    • Industrial Property Number
      特許,61/158128
    • Filing Date
      2009-03-07

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Published: 2012-02-13   Modified: 2016-04-21  

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