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Control of spin dynamics by electric field and electric-field-assisted spin Hall switching

Research Project

Project/Area Number 16H04328
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

Kato Takeshi  名古屋大学, 工学研究科, 准教授 (50303665)

Co-Investigator(Kenkyū-buntansha) 岩田 聡  名古屋大学, 未来材料・システム研究所, 教授 (60151742)
大島 大輝  名古屋大学, 未来材料・システム研究所, 助教 (60736528)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥16,770,000 (Direct Cost: ¥12,900,000、Indirect Cost: ¥3,870,000)
Fiscal Year 2018: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2017: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2016: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Keywords電子・電気材料
Outline of Final Research Achievements

Spin Hall switching is considered as a promising way of the next generation writing scheme of the magnetic random access memories. This study focused on the effect of the applied electric field on the spin Hall switching of Co and Fe ultrathin films, where the electric field was applied thorough HfO2/MgO insulation layer. Moreover, the effect of the electric field on the spin dynamics was also studied. The coercivity and current density of the spin Hall switching were modified by the electric field as 43 %/(V/m) and 20 %/(V/m), respectively. The modifications of the coercivity and the current density of the spin Hall switching by the electric field were found to be sensitive to the deposition condition of the insulation layer.

Academic Significance and Societal Importance of the Research Achievements

スピンホール磁化反転は磁気ランダムアクセスメモリの高密度化,高速化に有効な次世代の磁化反転技術として期待されているが,磁化反転の臨界電流密度の低減が求められている.本研究では電界という電力消費の少ない方法でこの臨界電流密度が大きく変調されることを示し,基礎,応用両面において重要な成果が得られたと考えられる.また,この臨界電流密度の変調は絶縁層の成膜条件に大きく依存することも明らかになり,今後,成膜条件の最適化により更に大きな電界効果が得られることが期待される成果も得られた.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (48 results)

All 2019 2018 2017 2016

All Journal Article (11 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 11 results,  Acknowledgement Compliant: 2 results) Presentation (35 results) (of which Int'l Joint Research: 15 results,  Invited: 7 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Ion Irradiation for Planar Patterning of Magnetic Materials2019

    • Author(s)
      Kato Takeshi、Oshima Daiki、Iwata Satoshi
    • Journal Title

      Crystals

      Volume: 9 Issue: 1 Pages: 27-27

    • DOI

      10.3390/cryst9010027

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin transfer torque switching of Co/Pd multilayers and Gilbert damping of Co-based multilayers2018

    • Author(s)
      Kimura Takumi、Dong Xiayin、Adachi Kanta、Oshima Daiki、Kato Takeshi、Sonobe Yoshiaki、Okamoto Satoshi、Kikuchi Nobuaki、Kawato Yoshiaki、Kitakami Osamu、Iwata Satoshi
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 57 Issue: 9S2 Pages: 09TD01-09TD01

    • DOI

      10.7567/jjap.57.09td01

    • NAID

      210000149672

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hybrid Memory Layer With Low Curie Temperature CoPd/Pd Multilayer for High-Density Magnetic Random-Access Memory Cells2018

    • Author(s)
      Zhao W.、Dong X.、Kimura T.、Kato T.、Oshima D.、Sonobe Y.、Kawato Y.、Iwata S.
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 54 Issue: 11 Pages: 1-5

    • DOI

      10.1109/tmag.2018.2828138

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Variation of Magnetization Dynamics of Co/Ni Multilayer by Capturing Magnetic Nanoparticles2018

    • Author(s)
      Otaki Y.、Kato T.、Okamoto S.、Kikuchi N.、Oshima D.、Iwata S.、Kitakami O.
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: 54 Issue: 11 Pages: 1-4

    • DOI

      10.1109/tmag.2018.2832660

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Switching Field Distribution of MnGa Bit Patterned Film Fabricated by Ion Beam Irradiation2018

    • Author(s)
      D. Oshima, T. Kato, S. Iwata
    • Journal Title

      IEEE Trans. Magn.

      Volume: 54 Issue: 2 Pages: 1-7

    • DOI

      10.1109/tmag.2017.2733765

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-valve giant magneto-resistance film with magnetostrictive FeSiB amorphous layer and its application to strain sensors2018

    • Author(s)
      Y. Hashimoto, N. Yamamoto, T. Kato, D. Oshima, S. Iwata
    • Journal Title

      J. Appl. Phys.

      Volume: 123 Issue: 11

    • DOI

      10.1063/1.5018467

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin transfer torque switching in exchangecoupled amorphous GdFeCo/TbFe bilayers for thermally assisted MRAM application2017

    • Author(s)
      B. Dai, Y. Guo, J. Zhu, T. Kato, S. Iwata, S. Tsunashima, L. Yang, J. Han
    • Journal Title

      J. Phys. D: Appl. Phys.

      Volume: 50 Issue: 13 Pages: 135005-135005

    • DOI

      10.1088/1361-6463/aa5bca

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ion irradiation induced magnetic transition of MnGa alloy films studied by X-ray magnetic circular dichroism and low-temperature hysteresis loops2016

    • Author(s)
      D. Oshima, M. Tanimoto, T. Kato, Y. Fujiwara, T. Nakamura, Y. Kotani, S. Tsunashima, S. Iwata
    • Journal Title

      IEEE Trans. Magn.

      Volume: 52 Issue: 7 Pages: 1-4

    • DOI

      10.1109/tmag.2016.2527050

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Nanoscale patterning of CrPt3 magnetic thin films by using ion beam irradiation2016

    • Author(s)
      E. Suharyadi, D. Oshima, T. Kato, S. Iwata
    • Journal Title

      Results in Physics

      Volume: 6 Pages: 186-188

    • DOI

      10.1016/j.rinp.2016.03.010

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effective Damping Constant and Current Induced Magnetization Switching of GdFeCo / TbFe Exchange-Coupled Bilayer2016

    • Author(s)
      T. Higashide, B. Dai, T. Kato, D. Oshima, S. Iwata
    • Journal Title

      IEEE Magn. Lett.

      Volume: 7 Pages: 1-5

    • DOI

      10.1109/lmag.2016.2595502

    • NAID

      120005895204

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spin-orbit torques in ferrimagnetic GdFeCo alloys2016

    • Author(s)
      N. Roschewsky, T. Matsumura, S. Cheema, F. Hellman, T. Kato, S. Iwata, S. Salahuddin
    • Journal Title

      Appl. Phys. Lett.

      Volume: 109 Issue: 11

    • DOI

      10.1063/1.4962812

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Spin orbit torques in ferrimagnetic GdFeCo/Ta bilayers2019

    • Author(s)
      K. Kawakami, D. Oshima, T. Kato, S. Iwata
    • Organizer
      International School on Spintronics and Korea-Japan Spintronics Workshop -Topological Phenomena in Magnetism-
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MgO/Co/Pt積層膜の電界アシストスピンホール磁化反転2019

    • Author(s)
      國島和哉,周興, 大島大輝, 加藤剛志, 岩田聡
    • Organizer
      IEEE Magnetics Society 名古屋支部若手研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Hybrid memory layer with low Curie temperature CoPd/Pd multilayer for high-density magnetic random access memory cells2018

    • Author(s)
      W. Zhao, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, Y. Kawato, S. Iwata
    • Organizer
      IEEE International Magnetics Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Detection of magnetic nanoparticles by variation of magnetization dynamics of Co/Ni multilayer2018

    • Author(s)
      Y. Otaki, T. Kato, S. Okamoto, N. Kikuchi, D. Oshima, S. Iwata, O. Kitakami
    • Organizer
      IEEE International Magnetics Conference 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Planar bit patterned MnGa films fabricated by ion irradiation (Invited)2018

    • Author(s)
      T. Kato, D. Oshima, S. Iwata
    • Organizer
      5th International Conference of Asian Union of Magnetics Societies
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Modification of magnetization dynamics of perpendicular magnetized Co/Ni multilayer by adsorption of magnetic nano-particles2018

    • Author(s)
      Y. Otaki, T. Kato, S. Okamoto, N. Kikuchi, D. Oshima, S. Iwata, O. Kitakami
    • Organizer
      11th International Conference of Electrical, Transport, and Optical Properties of Inhomogeneous Media
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ion implantation for planar nano-pattering of magnetic materials (Invited)2018

    • Author(s)
      T. Kato
    • Organizer
      11th International Conference of Electrical, Transport, and Optical Properties of Inhomogeneous Media
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 垂直磁化Co超薄膜における電界アシストスピンホール磁化反転2018

    • Author(s)
      國島和哉, 周興, 大島大輝, 加藤剛志, 岩田聡
    • Organizer
      第42回日本磁気学会学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Co/Pd多層膜のスピン注入磁化反転臨界電流の層厚比依存性2018

    • Author(s)
      趙望臻,木村匠,大島大輝,加藤剛志,園部義明,川戸良昭,岩田聡
    • Organizer
      第42回日本磁気学会学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 低キュリー温度CoPd/Pd系多層膜を用いたMRAM用交換結合ハイブリッドメモリ層2018

    • Author(s)
      趙望臻,木村匠,董夏茵,大島大輝,加藤剛志,園部義明,川戸良昭,岩田聡
    • Organizer
      第42回日本磁気学会学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Current induced magnetization switching of hybrid memory layer comprised of CoPd/Pd and Co/Pd multilayers2018

    • Author(s)
      W. Zhao, T. Kimura, T. Kato, D. Oshima, Y. Sonobe, Y. Kawato, S. Iwata
    • Organizer
      40th International Symposium on Dry Process
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MgO/Fe/Pt積層膜におけるGilbertダンピング定数α2018

    • Author(s)
      石井克弥,大島大輝,加藤剛志,岩田聡
    • Organizer
      第6回応用物理学会SC東海地区学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] SiN/GdFeCo/Ta膜におけるスピンホール磁化反転2018

    • Author(s)
      川上圭祐,大島大輝,加藤剛志,岩田聡
    • Organizer
      第6回応用物理学会SC東海地区学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] イオン照射による磁気ナノ構造の作製(招待講演)2018

    • Author(s)
      加藤剛志
    • Organizer
      第70回日本磁気学会スピンエレクトロニクス専門研究会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Compositional dependence of spin orbit torques in ferrimagnetic GdFeCo / Ta bilayers2018

    • Author(s)
      K. Kawakami, D. Oshima, T. Kato, S. Iwata
    • Organizer
      Magnetics and Optics Research International Symposium 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spin transfer torque switching of Co/Pd-based multilayers with low Curie temperature2018

    • Author(s)
      T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata
    • Organizer
      Magnetics and Optics Research International Symposium 2018
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直磁化Co膜における電界アシストスピンホール磁化反転2018

    • Author(s)
      周興, 大島大輝, 加藤剛志, 岩田聡
    • Organizer
      IEEE Magnetics Society 名古屋支部若手研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 熱を利用した高機能スピンデバイス開発に向けて(招待講演)2017

    • Author(s)
      加藤剛志
    • Organizer
      電気学会 第1回光・熱・磁気の相互作用を利用した新規スピンデバイス・ストレージ技術調査専門委員会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Ion Beam Bit Patterned Media Using MnGa Alloy Films (Invited)2017

    • Author(s)
      D. Oshima, T. Kato, S. Iwata
    • Organizer
      The 28th Magnetic Recording Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] アモルファスGdFeCo膜におけるスピン軌道トルク2017

    • Author(s)
      川上圭祐,大島大輝,加藤剛志,岩田聡
    • Organizer
      第41回日本磁気学会学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 低キュリー温度Co/Pd系多層膜を用いたスピン注入磁化反転2017

    • Author(s)
      木村匠,董夏菌,大島大輝,加藤剛志,園部義明,川戸良昭,岩田聡
    • Organizer
      第41回日本磁気学会学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 垂直磁化Co超薄膜の電界アシストスピンホール磁化反転2017

    • Author(s)
      周興,大島大輝,加藤剛志,岩田聡
    • Organizer
      第5回応用物理学会SC東海地区学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 電界印加によるCo超薄膜の磁気特性制御2017

    • Author(s)
      前田啓,田中龍馬,大島大輝,加藤剛志,岩田聡
    • Organizer
      第5回応用物理学会SC東海地区学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Current induced magnetization switching of Co/Pd-based multilayers with low Curie temperature2017

    • Author(s)
      T. Kimura, X. Dong, D. Oshima, T. Kato, Y. Sonobe, Y. Kawato, S. Iwata
    • Organizer
      62nd Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Compositional Dependence of spin orbit torques in amorphous GdFeCo films2017

    • Author(s)
      K. Kawakami, D. Oshima, T. Kato, S. Iwata
    • Organizer
      62nd Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SiN / GdFeCo / Ta膜におけるスピン軌道トルク2017

    • Author(s)
      川上圭祐,大島大輝,加藤剛志,岩田聡
    • Organizer
      電気学会マグネティックス研究会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 垂直磁化GdFeCoアモルファス膜のスピン軌道トルクによる磁化反転2017

    • Author(s)
      松村智矢, 大島大輝, 加藤剛志, 岩田聡
    • Organizer
      IEEE Magnetics Society 名古屋支部若手研究会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Time resolved magneto-optical Kerr effect and spin transfer torque switching of GdFeCo / TbFe exchange coupled bilayers (Invited)2016

    • Author(s)
      T. Kato, T. Higashide, B. Dai, D. Oshima, S. Iwata
    • Organizer
      第40回日本磁気学会学術講演会
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 垂直磁化GdFeCo膜のスピンホール効果による磁化反転2016

    • Author(s)
      1松村智矢,大島大輝,加藤剛志,岩田聡
    • Organizer
      第40回日本磁気学会学術講演会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 低キュリー温度CoPd/Pd多層膜を用いた交換結合膜の磁化反転2016

    • Author(s)
      董夏茵,大島大輝,加藤剛志,園部義明,岩田聡
    • Organizer
      第40回日本磁気学会学術講演会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Co/Ni多層膜の下地層によるダンピング定数の変化2016

    • Author(s)
      加藤圭一郎,大島大輝,加藤剛志,岩田聡
    • Organizer
      平成28年度電気学会東海支部連合大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] [CoPd/Pd] and [Co/Pd] hybrid stacks for the memory layer of high density magnetic random access memory cells2016

    • Author(s)
      X. Dong, D. Oshima, T. Kato, Y. Sonobe, S. Iwata:
    • Organizer
      61st Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetization switching induced by spin-orbit torques in perpendicularly magnetized Ta / GdFeCo bilayers2016

    • Author(s)
      T. Matsumura, D. Oshima, T. Kato, N. Roschewsky, S. Salahuddin, S. Iwata
    • Organizer
      61st Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sign of Spin-Orbit Torques in ferrimagnetic GdFeCo2016

    • Author(s)
      N. Roschewsky, T. Matsumura, S. Cheema, T. Kato, S. Iwata, S. Salahuddin
    • Organizer
      61st Annual Conference on Magnetism and Magnetic Materials
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Time resolved magneto-optical Kerr effect of magnetic materials with high perpendicular magnetic anisotropy2016

    • Author(s)
      T. Kato
    • Organizer
      International Workshop on Novel Photo Induced Phenomena and Applications
    • Related Report
      2016 Annual Research Report
  • [Patent(Industrial Property Rights)] 磁気抵抗素子及び磁気抵抗メモリ装置2017

    • Inventor(s)
      園部義明,町田顕,加藤剛志
    • Industrial Property Rights Holder
      園部義明,町田顕,加藤剛志
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-226830
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report
  • [Patent(Industrial Property Rights)] 磁気抵抗メモリ装置2017

    • Inventor(s)
      園部義明,園田正俊,加藤剛志
    • Industrial Property Rights Holder
      園部義明,園田正俊,加藤剛志
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-020282
    • Filing Date
      2017
    • Related Report
      2016 Annual Research Report

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Published: 2016-04-21   Modified: 2020-03-30  

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