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Electrical control of magnetization

Research Project

Project/Area Number 21681021
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Microdevices/Nanodevices
Research InstitutionKyoto University

Principal Investigator

CHIBA Daichi  京都大学, 化学研究所, 准教授 (10505241)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥26,260,000 (Direct Cost: ¥20,200,000、Indirect Cost: ¥6,060,000)
Fiscal Year 2011: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2010: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2009: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Keywordsスピンデバイス / 磁化制御 / 磁気メモリ / 磁気異方性 / 電界効果
Research Abstract

To control magnetism and magnetization direction by electrical means is main purpose of this research. By using ferromagnetic semiconductors, an electric-field induced ferromagnetic phase transition and magnetization switching have been achieved. Furthermore, we observed ferromagnetic phase transition by applying an electric field even in a ferromagnetic metal for the first time at room temperature.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (57 results)

All 2012 2011 2010 2009 Other

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (31 results) Remarks (7 results) Patent(Industrial Property Rights) (2 results) (of which Overseas: 1 results)

  • [Journal Article] Electrical control of Curie temperature in cobalt using an ionic liquid film2012

    • Author(s)
      K.Shimamura, T.Ono, et al
    • Journal Title

      Appl.Phys.Lett.

      Volume: 100 Issue: 12 Pages: 122-402

    • DOI

      10.1063/1.3695160

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Electrical control of the ferromagnetic phase transition in cobalt at room temperature2011

    • Author(s)
      D.Chiba, T.Ono, et al
    • Journal Title

      Nature Materials

      Volume: 10 Issue: 11 Pages: 853-856

    • DOI

      10.1038/nmat3130

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Field Insensitivity of Magnetic Domain Wall Velocity Induced by Electrical Current in Co/Ni Nanowire2011

    • Author(s)
      T.Koyama, D.Chiba, K.Ueda, H.Tanigawa, S.Fukami, T.Suzuki, N.Ohshima, N.Ishiwata, Y.Nakatani, T.Ono
    • Journal Title

      Applied Physics Letters

      Volume: 98 Issue: 19 Pages: 1925091-3

    • DOI

      10.1063/1.3590713

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Current-Induced Magnetic Domain Wall Motion in Co/Ni Nanowire at Low Temperatire2011

    • Author(s)
      K.Ueda, T.Koyama, D.Chiba, H.Tanigawa, S.Fukami, T.Suzuki, N.Ohshima, N.Ishiwata, Y.Nakatani, T.Ono
    • Journal Title

      Applied Physics Express

      Volume: 4 Issue: 6 Pages: 0630031-3

    • DOI

      10.1143/apex.4.063003

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Current on Domain Wall Depinning Field in Co/Ni Nanowire2011

    • Author(s)
      R.Hiramatsu, K.Kondou, T.Koyama, Y.Yoshimura, D.Chiba, S.Fukami, N.Ishiwata, T.Ono
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 51 Issue: 7R Pages: 28005-28005

    • DOI

      10.1143/jjap.50.073002

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Real space observation of current-induced magnetic domain wall displacement in Co/Ni nano-wire by photoemission electron microscopy2011

    • Author(s)
      N Ohshima, T Koyama, H Tanigawa, M Kotsugi, T Ohkouchi, D.Chiba, T Kinoshita, T Ono
    • Journal Title

      Journal of Physics : Condensed Matter

      Volume: 23 Issue: 38 Pages: 382202-382202

    • DOI

      10.1088/0953-8984/23/38/382202

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Wire Width Dependence of Threshold Current Density for Domain Wall Motion in Co/Ni Nanowires2011

    • Author(s)
      T.Koyama, D.Chiba, K.Ueda, H.Tanigawa, S.Fukami, T.Suzuki, N.Ohshima, N.Ishiwata, Y.Nakatani, T.Ono
    • Journal Title

      IEEE, Transactions on Magnetics

      Volume: 47 Issue: 10 Pages: 3089-3089

    • DOI

      10.1109/tmag.2011.2157308

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] All-electrical operation of magnetic vortex core memory cell2011

    • Author(s)
      K.Nakano, T.Ono, et al
    • Journal Title

      Appl.Phys.Lett.

      Volume: 99 Issue: 26 Pages: 262-505

    • DOI

      10.1063/1.3673303

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrically defined ferromagnetic nanodots2010

    • Author(s)
      D. Chiba, F. Matsukura, and H. Ohno
    • Journal Title

      Nano Letters

      Volume: 10 Issue: 11 Pages: 4505-4508

    • DOI

      10.1021/nl102379h

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulation of magnetization switching by electric-field manipulation of magnetic anisotropy2010

    • Author(s)
      D. Chiba, Y. Nakatani, F. Matsukura, and H. Ohno
    • Journal Title

      Applied Physics Letters

      Volume: 96 Issue: 19

    • DOI

      10.1063/1.3428959

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous Hall Effect in Field-Effect Structures of(Ga, Mn) As2010

    • Author(s)
      D. Chiba, A. Werpachowska, M. Endo, Y. Nishitani, F. Matsukura, T. Dietl, and H. Ohno
    • Journal Title

      Physical Review Letters

      Volume: 104 Issue: 10

    • DOI

      10.1103/physrevlett.104.106601

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Curie temperature versus hole concentration in field-effect structures of Ga1-xMnxAs2010

    • Author(s)
      Y. Nishitani, D. Chiba, M. Endo, M. Sawicki, F. Matsukura, T. Dietl, and H. Ohno
    • Journal Title

      Physical Review B

      Volume: 81 Issue: 4

    • DOI

      10.1103/physrevb.81.045208

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Electric double layer transistor with a (Ga,Mn)As channel2010

    • Author(s)
      M. Endo、D. Chiba、H. Shimotani、F. Matsukura、Y. Iwasa、H. Ohno
    • Journal Title

      Applied Physics Letters

      Volume: Applied Physics Letters Issue: 2

    • DOI

      10.1063/1.3277146

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Simulation of magnetization switching by electric-field manipulation of magnetic anisotropy2010

    • Author(s)
      D.Chiba, Y.Nakatani, F.Matsukura, H.Ohno
    • Journal Title

      Applied Physics Letters

      Volume: 96

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electric double layer transistor with a (Ga, Mn)As channel2010

    • Author(s)
      M.Endo, D.Chiba, H.Shimotani, F.Matsukura, Y.Iwasa, H.Ohno
    • Journal Title

      Applied Physics Letters 96

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Curie temperature versus hole concentration in field-effect structures of Ga_<1-x>Mn_xAs2010

    • Author(s)
      Y.Nishitani, D.Chiba, M.Endo, M.Sawicki, F.Matsukura, T.Dietl, H.
    • Journal Title

      Physical Review B 81

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous Hall Effect in Field-Effect Structures of (Ga, Mn) As2010

    • Author(s)
      D.Chiba, A.Werpachowska, M.Endo, Y.Nishitani, F.Matsukura, T.Dietl, H.Ohno
    • Journal Title

      Physical Review Letters 104

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] 磁壁電流駆動を用いたCo/Ni細線におけるスピン分極率の温度依存性2012

    • Author(s)
      上田浩平, 小山知弘, 千葉大地, 平松亮, 深見俊輔, 谷川博信, 鈴木哲広, 大嶋則和, 石綿延行, 仲谷栄伸, 小野輝男
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 垂直磁化Co/Ni細線における面内磁場下の磁壁電流駆動2012

    • Author(s)
      吉村瑶子, 小山知弘, 千葉大地, 深見俊輔, 山ノ内路彦, 大野英男, 仲谷栄伸, 小野輝男
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 極薄絶縁膜を用いた有機電界効果トランジスタ2012

    • Author(s)
      小野新平, 島村一利, Roger Hausermann, Bertram Batlogg, 千葉大地, 小野輝男
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] CO垂直磁化膜における磁壁移動速度の電界制御2012

    • Author(s)
      千葉大地, 河口真志, 深見俊輔, 石綿延行, 島村一利, 小林研介, 小野輝男
    • Organizer
      第59回応用物理学関連連合講演会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2012-03-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電気二重層を利用したCo超薄膜の磁性制御2012

    • Author(s)
      島村一利, 千葉大地, 小野新平, 深見俊輔, 石綿延行, 河口真志, 小林研介, 小野輝男
    • Organizer
      第59回応用物理学関連連合講演会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2012-03-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Co/Pt超薄膜における磁性の電界制御2011

    • Author(s)
      千葉大地, 島村一利、深見俊輔、小野新平、石綿延行、小林研介、小野輝男
    • Organizer
      東北大学電気通信研究所共同プロジェクト研究会
    • Place of Presentation
      東北大学(招待講演)
    • Year and Date
      2011-12-26
    • Related Report
      2011 Annual Research Report
  • [Presentation] 磁石を電界でコントロールする2011

    • Author(s)
      千葉大地
    • Organizer
      第一回ナノシステム若手交流会
    • Place of Presentation
      京都大学(招待講演)
    • Year and Date
      2011-11-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] 垂直磁化Co/Ni細線の磁壁電流駆動の温度依存性2011

    • Author(s)
      上田浩平, 小山知弘, 千葉大地, 深見俊輔, 谷川博信、 鈴木哲広, 大嶋則和, 石綿延行, 仲谷栄伸, 小野輝男
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] 磁壁電流駆動における閾電流密度に対する外部磁場の影響II2011

    • Author(s)
      小山知弘, 上田浩平, 千葉大地, 深見俊輔, 谷川博信, 鈴木哲広, 大嶋則和, 石綿延行, 仲谷栄伸, 小野輝男
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] Co/Ni細線における磁壁内の磁化回転検出の試み2011

    • Author(s)
      平松亮, 近藤浩太, 小山知弘, 千葉大地, 深見俊輔, 石綿延行, 仲谷栄伸, 小野輝男
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] Co超薄膜における磁性の電界制御2011

    • Author(s)
      千葉大地, 深見俊輔, 島村一利, 石綿延行, 小林研介, 小野輝男
    • Organizer
      第72回応用物理学会学術講演会
    • Place of Presentation
      山形大学
    • Year and Date
      2011-09-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] Electric field control of ferromagnetism in III-V ferromagnetic semiconductor structures2011

    • Author(s)
      D. Chiba, K. Kobayashi, T. Ono, F. Matsukura, H. Ohno
    • Organizer
      Moscow International Symposium on Magnetism
    • Place of Presentation
      モスクワ・ロシア
    • Year and Date
      2011-08-23
    • Related Report
      2011 Final Research Report
  • [Presentation] Electric field control of ferromagnetism in III-V ferromagnetic semiconductor structures2011

    • Author(s)
      D.Chiba, K.Kobayashi, T.Ono, F.Matsukura, H.Ohno
    • Organizer
      Moscow International Symposium on Magnetism
    • Place of Presentation
      モスクワ大学(ロシア)(招待講演)
    • Year and Date
      2011-08-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] Modulation of coercivity by electric fields in Co/Pt ultra-thin films2011

    • Author(s)
      D. Chiba, S. Fukami, K. Shimamura, N. Ishiwata, K. Kobayashi, T. Ono
    • Organizer
      5th International Workshop on Spin Currents
    • Place of Presentation
      仙台国際センター
    • Year and Date
      2011-07-25
    • Related Report
      2011 Final Research Report
  • [Presentation] Modulation of coercivity by electric fields in Co/Pt ultra-thin films2011

    • Author(s)
      D.Chiba, S.Fukami, K.Shimamura, N.Ishiwata, K.Kobayashi, T.Ono
    • Organizer
      5th International Workshop on Spin Currents
    • Place of Presentation
      仙台国際センター(招待講演)
    • Year and Date
      2011-07-25
    • Related Report
      2011 Annual Research Report
  • [Presentation] 電界誘起磁化スイッチングのシミュレーション2011

    • Author(s)
      千葉大地、大江純一郎、前川禎通、小野輝男
    • Organizer
      第58回応用物理学関連連合講演会
    • Place of Presentation
      神奈川(神奈川工科大学)
    • Year and Date
      2011-03-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] 電界による(Ga,Mn)As強磁性ナノドット配列の形成2011

    • Author(s)
      千葉大地、松倉文礼、大野英男
    • Organizer
      第58回応用物理学関連連合講演会
    • Place of Presentation
      神奈川(神奈川工科大学)
    • Year and Date
      2011-03-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] Atomic layer deposition法を用いたNi薄膜の作製と評価2011

    • Author(s)
      島村一利、千葉大地、小野輝男
    • Organizer
      第58回応用物理学関連連合講演会
    • Place of Presentation
      神奈川(神奈川工科大学)
    • Year and Date
      2011-03-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] 電界による磁性制御2011

    • Author(s)
      千葉大地, 島村一利, 小野輝男, 松倉文礼, 大野英男
    • Organizer
      固体材料における電界効果の物理と応用の進展-若手ミニワークショップ-
    • Place of Presentation
      仙台(仙台戦災復興記念館)(招待講演)
    • Year and Date
      2011-03-04
    • Related Report
      2010 Annual Research Report
  • [Presentation] Coercivity modulation by electric field in Co/Pt ultra-thin film2011

    • Author(s)
      D.Chiba, K.Shimamura, S.Fukami, N.Ishiwata, T.Ono
    • Organizer
      Symposium on Surface and Nano Science 2011
    • Place of Presentation
      雫石(雫石プリンスホテル)
    • Year and Date
      2011-01-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] 電界による(Ga,Mn)As強磁性ナノドットの形成2010

    • Author(s)
      千葉大地、松倉文礼、大野英男
    • Organizer
      第15回 半導体スピン工学の基礎と応用(PASPS-15)
    • Place of Presentation
      筑波(筑波大学)
    • Year and Date
      2010-12-20
    • Related Report
      2010 Annual Research Report
  • [Presentation] Magnetization switching and nano-dot formation by electric field in(Ga, Mn) As structure2010

    • Author(s)
      D. Chiba, K. Kobayashi, T. Ono, F. Matsukura, and H. Ohno
    • Organizer
      Super-PIRE/Reimei/MWN Joint Kickoff Meeting
    • Place of Presentation
      ノックスビル・米国
    • Year and Date
      2010-10-30
    • Related Report
      2011 Final Research Report
  • [Presentation] Magnetization switching and nano-dot formation by electric field in (Ga, Mn) As structure2010

    • Author(s)
      D.Chiba, K.Kobayashi, T.Ono, F.Matsukura, H.Ohno
    • Organizer
      Super-PIRE/Reimei/MWN Joint Kickoff Meeting
    • Place of Presentation
      ノックスビル・米国(テネシー大学)(招待講演)
    • Year and Date
      2010-10-30
    • Related Report
      2010 Annual Research Report
  • [Presentation] Electric field induced magnetization switching in a (Ga, Mn) As field effect structure2010

    • Author(s)
      D.Chiba, K.Kobayashi, T.Ono, F.Matsukura, H.Ohno
    • Organizer
      The 6th International Conference on the Physics and Applications of Spin Related Phenomena in Semiconductors (PASPS6)
    • Place of Presentation
      東京(東京大学本郷キャンパス)
    • Year and Date
      2010-08-03
    • Related Report
      2010 Annual Research Report
  • [Presentation] Electric-field manipulation of magnetic anisotropy in(Ga, Mn) As2009

    • Author(s)
      D. Chiba, M. Sawicki, Y. Nishitani, Y. Nakatani, T. Ono, F. Matsukura, and H. Ohno
    • Organizer
      Advances in Magnetic Nanostructures
    • Place of Presentation
      ヴェイル・米国
    • Year and Date
      2009-10-08
    • Related Report
      2011 Final Research Report
  • [Presentation] Electric-field manipulation of magnetic anisotropy in (Ga, Mn) As2009

    • Author(s)
      D.Chiba, M.Sawicki, Y.Nishitani, Y.Nakatani, T.Ono, F.Matsukura, H.
    • Organizer
      Advances in Magnetic Nanostructures
    • Place of Presentation
      ヴェイル・米国
    • Year and Date
      2009-10-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] Simulations on electric-field induced magnetization switching without external magnetic field2009

    • Author(s)
      D.Chiba, Y.Nakatani, T.Ono, F.Matsukura, H.Ohno
    • Organizer
      International Conference on Magnetism
    • Place of Presentation
      カールスルーコ・ドイツ
    • Year and Date
      2009-07-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Electric-field manipulation of magnetization vector in(Ga, Mn) As2009

    • Author(s)
      D. Chiba, M. Sawicki, Y. Nishitani, Y. Nakatani, T. Ono, F. Matsukura, and H. Ohno
    • Organizer
      The 18th International Conference on Electronic Properties of Two-Dimensional Systems
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2009-07-21
    • Related Report
      2011 Final Research Report
  • [Presentation] Electric-field manipulation of magnetization vector in (Ga, Mn) As2009

    • Author(s)
      D.Chiba, M.Sawicki, Y.Nishitani, Y.Nakatani, T.Ono, F.Matsukura, H.
    • Organizer
      The 18th International Conference on Electronic Properties of Two-Dimensional Systems
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2009-07-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] Electric-field control of the anomalous Hall effect in (Ga, Mn) As thin films2009

    • Author(s)
      D.Chiba, M.Endo, Y.Nishitani, F.Matsukura, H.Ohno
    • Organizer
      The 14th International Conference on Modulated Semiconductor Structures
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2009-07-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] Electric field manipulation of magnetic anisotropy in ferromagnetic semiconductors2009

    • Author(s)
      D. Chiba, M. Sawicki, Y. Nishitani, Y. Nakatani, T. Ono, F. Matsukura, and H. Ohno
    • Organizer
      International Magnetics Conference
    • Place of Presentation
      サクラメント・米国
    • Year and Date
      2009-05-05
    • Related Report
      2011 Final Research Report 2009 Annual Research Report
  • [Remarks] 報道関連情報(1) 2011年10月3日,京都新聞朝刊22面,"永久磁石の磁力完全オフ"

    • Related Report
      2011 Final Research Report
  • [Remarks] (2) 2011年10月3日,朝日新聞朝刊34面,"薄い磁石に電圧磁力消えた"

    • Related Report
      2011 Final Research Report
  • [Remarks] (3) 2011年10月3日,日本経済新聞朝刊11面,"室温で磁力ゼロに"

    • Related Report
      2011 Final Research Report
  • [Remarks] (4) 2011年10月3日,毎日新聞朝刊21面,"室温で磁性をオン・オフ"

    • Related Report
      2011 Final Research Report
  • [Remarks] (5) 2011年10月3日,中日新聞朝刊32面,"コバルトに電圧金属の磁性消す"

    • Related Report
      2011 Final Research Report
  • [Remarks]

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • Related Report
      2011 Annual Research Report
  • [Patent(Industrial Property Rights)] 電圧駆動型電磁石2011

    • Inventor(s)
      千葉大地、小野輝男
    • Industrial Property Rights Holder
      千葉大地、小野輝男
    • Filing Date
      2011-09-09
    • Related Report
      2011 Final Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 電圧駆動型電磁石2011

    • Inventor(s)
      千葉大地, 小野輝男
    • Industrial Property Rights Holder
      京都大学
    • Industrial Property Number
      2011-196860
    • Filing Date
      2011-09-09
    • Related Report
      2011 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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