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Spin injection magnetic memory using perpendicular magnetized films

Research Project

Project/Area Number 19360143
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionNagoya University

Principal Investigator

TSUNASHIMA Shigeru  Nagoya University, 大学院・工学研究科, 教授 (80023323)

Co-Investigator(Kenkyū-buntansha) IWATA Satoshi  名古屋大学, 大学院・工学研究科, 教授 (60151742)
KATO Takeshi  名古屋大学, 大学院・工学研究科, 准教授 (50303665)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2008: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2007: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywordsメモリ / 熱磁気記録 / アモルファス合金 / スピン注入 / ジュール熱 / 臨界電流密度
Research Abstract

本研究は固体メモリの高速性, 磁気記録の不揮発性, さらには低電力での書き換え特性を兼備した固体メモリデバイスの開発を目的とし, 微細加工した希土類遷移金属(RE-TM)垂直磁化膜への熱磁気記録, RE-TM膜へのスピン注入磁気記録を試みた. RE-TM膜を用いることで十分実現可能なパワー密度で高速の熱アシスト磁化反転が可能であることが分かった.さらに.RE-TM垂直磁化膜へのスピン注入による磁化反転を確認することに成功し, 低電力での磁化反転の可能性を示すことができた.

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (24 results)

All 2009 2008 2007

All Journal Article (9 results) (of which Peer Reviewed: 8 results) Presentation (13 results) Book (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Thermomagnetic writing on deep submicron patterned TbFe films by nanosecond current pulse2009

    • Author(s)
      L. You, T. Kato, S. Tsunashima, S. Iwata
    • Journal Title

      J. Magn. Magn. Mat vol. 321

      Pages: 1015-1018

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Planar patterned media fabricated by ion irradiation into CrPt_3 ordered alloy films2009

    • Author(s)
      T. Kato, Y. Yamauchi, S. Iwata, S. Tsunashima, K. Matsumoto, T. Morikawa, K. Ozaki
    • Journal Title

      J. Appl. Phys vol. 150

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Heating in Micron- and Submicron-Patterned TbFe Films2008

    • Author(s)
      L. You, T. Kato, S. Tsunashima, S. Iwata
    • Journal Title

      Jpn. J. Appl. Phys vol. 47, No. 1

      Pages: 146-149

    • NAID

      40015871578

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Compositional dependence of g-factor and damping constant of GdFeCo amorphous alloy films2008

    • Author(s)
      T. Kato, K. Nakazawa, R. Komiya, N. Nishizawa, S. Tsunashima, S. Iwata
    • Journal Title

      IEEE Trans. Magn vol. 44, No. 11

      Pages: 3380-3383

    • NAID

      120001101533

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] MBE成膜したCo-PtおよびFe-Pt規則合金膜の構造と磁気特性2008

    • Author(s)
      岩田聡, 加藤剛志, 綱島滋
    • Journal Title

      まぐね vol. 3, No. 6

      Pages: 254-261

    • NAID

      10021155170

    • Related Report
      2008 Final Research Report
  • [Journal Article] Effect of Sputtering Deposition Process on Magnetic Properties in Magnetic Multilayers2008

    • Author(s)
      Y. Maeda, Y. Suzuki, Y. Sakashita, S. Iwata, T. Kato, S. Tsunashima, H. Toyoda, H. Sugai
    • Journal Title

      Jpn. J. Appl. Phys vol. 47, No. 10

      Pages: 7879-7885

    • NAID

      40016281766

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Sputtering Deposition Process on Magnetic Properties in Magnetic Multilayers2008

    • Author(s)
      Y. Maeda, Y. Suzuki, Y. Sakashita, S. Iwata, 他4名
    • Journal Title

      Jpn. J. Appl. Phys. vol. 47, No. 10

      Pages: 7879-7885

    • NAID

      40016281766

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Compositional dependence of g-factor and damping constant of GdFeCo amorphous alloy films2008

    • Author(s)
      T. Kato, K. Nakazawa, R. Komiya, N. Nishizawa, 他2名
    • Journal Title

      IEEE Trans. Magn. vol. 44, No. 11

      Pages: 3380-3383

    • NAID

      120001101533

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Heating in Micron-and Submicron-Patterned TbFe Films2008

    • Author(s)
      L. You, T. Kato, S. Tsunashima, S. Iwata
    • Journal Title

      Jpn. J. Appl. Phys. 47

      Pages: 146-149

    • NAID

      40015871578

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] L1_2型CrPt_3合金膜を用いたイオン照射型ビットパターン媒体(招待講演)2009

    • Author(s)
      加藤剛志, 山内幸大, 岩田聡, 綱島滋, 松本幸治, 森河剛, 尾崎一幸
    • Organizer
      電子情報通信学会2009年総合大会
    • Place of Presentation
      愛媛大, 松山
    • Year and Date
      2009-03-17
    • Related Report
      2008 Final Research Report
  • [Presentation] Planar patterned media fabricated by ion irradiation into CrPt_3 ordered alloy films2008

    • Author(s)
      T. Kato, Y. Yamauchi, S. Iwata, S. Tsunashima, 他3名
    • Organizer
      53rd Annual Conference on Magnetism and Magnetic Materials
    • Place of Presentation
      Austin, USA
    • Year and Date
      2008-11-13
    • Related Report
      2008 Annual Research Report
  • [Presentation] Local exchange anisotropy of epitaxial and polycrystalline MnIr/CoFe bilayers2008

    • Author(s)
      H. Kato, T. Kato, S. Tsunashima, S. Iwata
    • Organizer
      IEEE International Magnetics Conference 2008
    • Place of Presentation
      Madrid, Spain
    • Year and Date
      2008-05-04
    • Related Report
      2008 Final Research Report
  • [Presentation] Compositional dependence of g-factor and damping constant of GdFeCo amorphous alloy films2008

    • Author(s)
      T. Kato, K. Nakazawa, R. Komiya, N. Nishizawa, S. Tsunashima, S. Iwata
    • Organizer
      IEEE International Magnetics Conference 2008
    • Place of Presentation
      Madrid, Spain
    • Year and Date
      2008-05-04
    • Related Report
      2008 Annual Research Report 2008 Final Research Report
  • [Presentation] 磁性多層膜における磁気特性のスパッタ条件依存性2008

    • Author(s)
      岩田聡, 前田幸春, 鈴木勇佑, 坂下洋平, 加藤剛志, 綱島滋, 豊田浩孝, 菅井秀郎
    • Organizer
      平成20年電気学会全国大会
    • Place of Presentation
      福岡工業大学(招待講演)
    • Year and Date
      2008-03-19
    • Related Report
      2008 Final Research Report
  • [Presentation] 超短パルスファイバレーザを用いたGdFeCo薄膜の磁化ダイナミクス計測2008

    • Author(s)
      加藤剛志, 中澤健, 小宮良太, 西澤典彦, 綱島滋, 岩田聡
    • Organizer
      東北大通研共同プロジェクト研究/東北大通研スピニクス研究会
    • Place of Presentation
      東北大学, 宮城(招待講演)
    • Year and Date
      2008-02-07
    • Related Report
      2008 Final Research Report
  • [Presentation] Thermomagnetic writing on deep submicron patterned TbFe films by nanosecond current pulse2007

    • Author(s)
      L. You, T. Kato, S. Tsunashima, and S. Iwata
    • Organizer
      52nd Magnetism and Magnetic Materials Conference
    • Place of Presentation
      Tampa, USA
    • Year and Date
      2007-11-05
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] Dependence of structure and magnetic properties in magnetic multilayers on sputtering gases2007

    • Author(s)
      Y. Maeda, Y. Suzuki, Y. Sakashita, T. Kato, S. Iwata, S. Tsunashima, H. Toyoda, and H. Sugai
    • Organizer
      IEEE 6th International Symposium on Metallic Multilayers
    • Place of Presentation
      Perth, Australia
    • Year and Date
      2007-10-15
    • Related Report
      2008 Final Research Report
  • [Presentation] Local exchange anisotropy of (001) oriented CoFe/MnIr epitaxial bilayers2007

    • Author(s)
      H. Kato, T. Kato, W. Liu, S. Iwata, and S. Tsunashima
    • Organizer
      IEEE 6th International Symposium on Metallic Multilayers
    • Place of Presentation
      Perth, Australia
    • Year and Date
      2007-10-15
    • Related Report
      2008 Final Research Report
  • [Presentation] 微細加工TbFe合金膜へのパルス電流印加による熱アシスト磁化反転2007

    • Author(s)
      加藤剛志, You Long, 綱島滋, 岩田聡
    • Organizer
      電気学会ナノ熱磁気記録調査専門委員会/日本応用磁気学会ハイブリッド記録専門研究会
    • Place of Presentation
      機械振興会館, 東京(招待講演)
    • Year and Date
      2007-10-05
    • Related Report
      2008 Final Research Report
  • [Presentation] Magnetization Dynamics in GdFeCo Films Measured Using a Ultra Short Pulse Fiber Laser2007

    • Author(s)
      K. Nakazawa, T. Kato, N. Nishizawa, S. Tsunashima, and S. Iwata
    • Organizer
      MORIS 2007 Workshop on Thermal and Optical Magnetic Materials and Devices
    • Place of Presentation
      Pittsburgh, USA
    • Year and Date
      2007-09-27
    • Related Report
      2008 Final Research Report 2007 Annual Research Report
  • [Presentation] 超短パルスファイバーレーザーによるGdFeCo薄膜の磁化ダイナミクス計測2007

    • Author(s)
      中澤健, 加藤剛志, 西澤典彦, 綱島滋, 岩田聡
    • Organizer
      第31回日本応用磁気学会学術講演会
    • Place of Presentation
      学習院大,東京
    • Year and Date
      2007-09-11
    • Related Report
      2007 Annual Research Report
  • [Presentation] 熱磁気記録方式における微小磁区形成過程の解析と高密度化の検討2007

    • Author(s)
      加藤剛志, 谷口典隆, 綱島滋, 岩田聡
    • Organizer
      平成19年度電気学会基礎・材料・共通部門大会
    • Place of Presentation
      大阪大学(招待講演)
    • Year and Date
      2007-08-27
    • Related Report
      2008 Final Research Report
  • [Book] 薄膜ハンドブック(第2版)4.4.8[4]光磁気用薄膜2008

    • Author(s)
      綱島滋, 他
    • Publisher
      オーム社
    • Related Report
      2008 Annual Research Report
  • [Patent(Industrial Property Rights)] 磁気記録媒体, 磁気記録再生装置, および磁気記録媒体の製造方法2007

    • Inventor(s)
      松本幸治, 森河剛, 尾崎一幸, 綱島滋, 岩田聡, 加藤剛志
    • Industrial Property Rights Holder
      富士通株式会社
    • Industrial Property Number
      2007-268533
    • Filing Date
      2007-10-16
    • Related Report
      2008 Final Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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