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spin torque operation for antiferromagnetic spin devices

Research Project

Project/Area Number 17H04924
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Electron device/Electronic equipment
Research InstitutionKyoto University

Principal Investigator

Moriyama Takahiro  京都大学, 化学研究所, 准教授 (50643326)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥24,180,000 (Direct Cost: ¥18,600,000、Indirect Cost: ¥5,580,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2017: ¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Keywords反強磁性体 / スピントロニクス / テラヘルツ / スピン流 / 高周波
Outline of Final Research Achievements

Antiferromagnets have multiple magnetic sublattices and the magnetic moments on the sublattices are compensated by each other. Negligible net magnetization and small magnetic susceptibility of antiferromagnets were considered useless in spintronics. However, the present research found the possibility of the spin torque manipulation of the antiferromagnetic magnetic moment and the electrical reading of the direction of the magnetic moment. Based on the findings, non-volatile spin-torque operated antiferromagnetic memory devices were demonstrated. The achievement of this research strongly suggests that antiferromagnets can be novel and useful materials in spintronics.

Academic Significance and Societal Importance of the Research Achievements

本研究では、これまでスピントロニクスにおいて役に立たない材料であると考えられてきた反強磁性体について、実験結果を基にその有効性を示し、具体的な反強磁性スピンデバイスの実証を行った。反強磁性体には、これまで一般的に用いられてきた強磁性体にはない特性が多くある。例えば、反強磁性体の共鳴周波数はテラヘルツ付近にあるため、超高速スピンデバイスの実現も可能になる。よって反強磁性体は超高速・大容量通信などが求められる将来のエレクトロニクス産業にとって重要な材料であり、本成果はその可能性を初めて示した点で意義がある。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (45 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (5 results) Journal Article (19 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 19 results,  Open Access: 4 results) Presentation (19 results) (of which Int'l Joint Research: 14 results,  Invited: 17 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] University of California, Los Angeles/Cornell University(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Korea University(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Univ. Grenoble Alpes/CNRS/INAC-CEA(France)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] The University of Texas at Austin/University of California, Los Angeles(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] KAUST(Saudi Arabia)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Giant anomalous Hall conductivity at Pt/Cr2O3 interface2020

    • Author(s)
      Takahiro Moriyama, Yu Shiratsuchi, Tatsuya Iino, Hikaru Aono, Motohiro Suzuki, Tetsuya Nakamura, Yoshinori Kotani, Ryoichi Nakatani, Kohji Nakamura, and Teruo Ono
    • Journal Title

      Physical Review Applied

      Volume: 13 Issue: 3 Pages: 034052-034052

    • DOI

      10.1103/physrevapplied.13.034052

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced antiferromagnetic resonance linewidth in NiO/Pt and NiO/Pd2020

    • Author(s)
      Moriyama Takahiro、Hayashi Kensuke、Yamada Keisuke、Shima Mutsuhiro、Ohya Yutaka、Tserkovnyak Yaroslav、Ono Teruo
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 6 Pages: 060402-060402

    • DOI

      10.1103/physrevb.101.060402

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Large anomalous Hall effect in L12-ordered antiferromagnetic Mn3Ir thin films2020

    • Author(s)
      Iwaki Hiroyuki、Kimata Motoi、Ikebuchi Tetsuya、Kobayashi Yuta、Oda Kent、Shiota Yoichi、Ono Teruo、Moriyama Takahiro
    • Journal Title

      Applied Physics Letters

      Volume: 116 Issue: 2 Pages: 022408-022408

    • DOI

      10.1063/1.5128241

    • NAID

      130008157782

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature dependence of spin Hall magnetoresistance across the N?el temperature of CoO2020

    • Author(s)
      Oda Kent、MORIYAMA Takahiro、Kimata Motoi、Kasukawa Shuhei、ONO Teruo
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: 1 Pages: 010908-010908

    • DOI

      10.7567/1347-4065/ab6505

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetoresistance in Bilayers of Heavy Metal and Non-collinear Antiferromagnet2019

    • Author(s)
      Oda K.、Moriyama T.、Ono T.
    • Journal Title

      Journal of the Magnetics Society of Japan

      Volume: 43 Issue: 1 Pages: n/a

    • DOI

      10.3379/msjmag.1901R001

    • NAID

      130007542367

    • ISSN
      1882-2924, 1882-2932
    • Year and Date
      2019-01-01
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spin Seebeck Imaging of Spin-Torque Switching in Antiferromagnetic Pt/NiO Heterostructures2019

    • Author(s)
      Gray Isaiah、Moriyama Takahiro、Sivadas Nikhil、Stiehl Gregory M.、Heron John T.、Need Ryan、Kirby Brian J.、Low David H.、Nowack Katja C.、Schlom Darrell G.、Ralph Daniel C.、Ono Teruo、Fuchs Gregory D.
    • Journal Title

      Physical Review X

      Volume: 9 Issue: 4 Pages: 041016-041016

    • DOI

      10.1103/physrevx.9.041016

    • NAID

      120006822493

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Temperature dependence of magnetic resonance in ferrimagnetic GdFeCo alloys2019

    • Author(s)
      Okuno Takaya、Kim Se Kwon、Moriyama Takahiro、Kim Duck-Ho、Mizuno Hayato、Ikebuchi Tetsuya、Hirata Yuushou、Yoshikawa Hiroki、Tsukamoto Arata、Kim Kab-Jin、Shiota Yoichi、Lee Kyung-Jin、Ono Teruo
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 9 Pages: 093001-093001

    • DOI

      10.7567/1882-0786/ab33d5

    • NAID

      210000156781

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Intrinsic and extrinsic antiferromagnetic damping in NiO2019

    • Author(s)
      Moriyama Takahiro、Hayashi Kensuke、Yamada Keisuke、Shima Mutsuhiro、Ohya Yutaka、Ono Teruo
    • Journal Title

      Physical Review Materials

      Volume: 3 Issue: 5 Pages: 051402-051402

    • DOI

      10.1103/physrevmaterials.3.051402

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Resistive detection of the Neel temperature of Cr2O3 thin films2019

    • Author(s)
      Iino Tatsuya、Moriyama Takahiro、Iwaki Hiroyuki、Aono Hikaru、Shiratsuchi Yu、Ono Teruo
    • Journal Title

      Applied Physics Letters

      Volume: 114 Issue: 2 Pages: 022402-022402

    • DOI

      10.1063/1.5082220

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Choking Nonlocal Magnetic Damping in Exchange-Biased Ferromagnets2019

    • Author(s)
      Moriyama Takahiro、Oda Kent、Ono Teruo
    • Journal Title

      Physical Review Applied

      Volume: 11 Issue: 1 Pages: 011001-011001

    • DOI

      10.1103/physrevapplied.11.011001

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Alternative to the topological interpretation of the transverse resistivity anomalies in SrRuO32018

    • Author(s)
      Kan Daisuke、Moriyama Takahiro、Kobayashi Kento、Shimakawa Yuichi
    • Journal Title

      Physical Review B

      Volume: 98 Issue: 18 Pages: 180408-180408

    • DOI

      10.1103/physrevb.98.180408

    • NAID

      130008146098

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-Orbit-Torque Memory Operation of Synthetic Antiferromagnets2018

    • Author(s)
      Moriyama Takahiro、Zhou Weinan、Seki Takeshi、Takanashi Koki、Ono Teruo
    • Journal Title

      Physical Review Letters

      Volume: 121 Issue: 16 Pages: 167202-167202

    • DOI

      10.1103/physrevlett.121.167202

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spin torque control of antiferromagnetic moments in NiO2018

    • Author(s)
      Moriyama Takahiro、Oda Kent、Ohkochi Takuo、Kimata Motoi、Ono Teruo
    • Journal Title

      Scientific Reports

      Volume: 8 Issue: 1 Pages: 14167-14167

    • DOI

      10.1038/s41598-018-32508-w

    • NAID

      120006818698

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spin current transmission in polycrystalline NiO films2018

    • Author(s)
      Ikebuchi Tetsuya、Moriyama Takahiro、Mizuno Hayato、Oda Kent、Ono Teruo
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 7 Pages: 073003-073003

    • DOI

      10.7567/apex.11.073003

    • NAID

      210000136282

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Homodyne detection of ferromagnetic resonance by a non-uniform radio-frequency excitation current2018

    • Author(s)
      Ikebuchi Tetsuya、Moriyama Takahiro、Shiota Yoichi、Ono Teruo
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 5 Pages: 053008-053008

    • DOI

      10.7567/apex.11.053008

    • NAID

      210000136199

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antiferromagnetic spintronics2018

    • Author(s)
      Baltz V.、Manchon A.、Tsoi M.、Moriyama T.、Ono T.、Tserkovnyak Y.
    • Journal Title

      Reviews of Modern Physics

      Volume: 90 Issue: 1 Pages: 015005-015005

    • DOI

      10.1103/revmodphys.90.015005

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Spin torque in FeRh alloy measured by spin-torque ferromagnetic resonance2017

    • Author(s)
      Tanaka Kensho、Moriyama Takahiro、Usami Takamasa、Taniyama Tomoyasu、Ono Teruo
    • Journal Title

      Applied Physics Express

      Volume: 11 Issue: 1 Pages: 013008-013008

    • DOI

      10.7567/apex.11.013008

    • NAID

      210000136081

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Moment Orientation-Dependent Spin Dissipation in Antiferromagnets2017

    • Author(s)
      Moriyama Takahiro、Kamiya Michinari、Oda Kent、Tanaka Kensho、Kim Kab-Jin、Ono Teruo
    • Journal Title

      Physical Review Letters

      Volume: 119 Issue: 26 Pages: 267204-267204

    • DOI

      10.1103/physrevlett.119.267204

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Temperature dependence of spin-orbit effective fields in Pt/GdFeCo bilayers2017

    • Author(s)
      Seung Ham Woo、Kim Sanghoon、Kim Duck-Ho、Kim Kab-Jin、Okuno Takaya、Yoshikawa Hiroki、Tsukamoto Arata、Moriyama Takahiro、Ono Teruo
    • Journal Title

      Applied Physics Letters

      Volume: 110 Issue: 24 Pages: 242405-242405

    • DOI

      10.1063/1.4985436

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Spintronic operations with antiferromagnets2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      Material Research Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Choking nonlocal magnetic damping in exchange-biased ferromagnets2019

    • Author(s)
      Takahiro Moriyama, Kent Oda, Teruo Ono
    • Organizer
      Magnetism and Magnetic Materials Conference
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spintronic operations with antiferromagnets2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      International workshop Spintronics 2019 - Spin Peru-
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spintronic operations with antiferromagnets2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      SPICE Workshop -Antiferromagnetic Spintronics -
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 反強磁性体スピントロニクス2019

    • Author(s)
      森山貴広
    • Organizer
      第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 反強磁性体を用いたスピントロニクス操作2019

    • Author(s)
      森山貴広
    • Organizer
      [ATI] 2019年度第1回スピントロニクス研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Spintronic operations with antiferromagnets2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      Magnonics 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Controlling magnetic damping with antiferromagnets2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      The 6th Italian Conference on Magnetism
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetization control and detection of antiferromagnetic NiO2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      Joint MMM/Intermag Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin torque control of antiferromagnetic NiO2019

    • Author(s)
      Takahiro Moriyama
    • Organizer
      16th RIEC International Workshop on Spintronics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Choking nonlocal magnetic damping in exchange-biased ferromagnets2019

    • Author(s)
      Takahiro Moriyama, Kent Oda, and Teruo Ono
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Magnetization control and detection of antiferromagnetic NiO2018

    • Author(s)
      Takahiro Moriyama
    • Organizer
      日本磁気学会第42回学術講演会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Spin torque control of antiferromagnetic moments in NiO2018

    • Author(s)
      Takahiro Moriyama
    • Organizer
      International Conference on Magnetism
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin torque switching and magnetoresistive detection in antiferromagnets2018

    • Author(s)
      Takahiro Moriyama
    • Organizer
      19th International Symposium on the Physics of Semiconductors and Applications
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin torque switching of antiferromagnets2018

    • Author(s)
      Takahiro Moriyama
    • Organizer
      2nd IEEE Conference on Advances in Magnetics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin orbit torque in antiferromagnets2017

    • Author(s)
      Takahiro Moriyama
    • Organizer
      ETH-Amsterdam-Kyoto mini-workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin orbit torque in antiferromagnets2017

    • Author(s)
      Takahiro Moriyama
    • Organizer
      SPICE 2017 Young Research Leaders Group Workshop
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin dissipation depending on magnetic moment orientation in antiferromagnets2017

    • Author(s)
      Takahiro Moriyama
    • Organizer
      York-Tohoku-Kaiserslautern JSPS Core-to-Core Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 反強磁性磁化のスピントルク制御2017

    • Author(s)
      森山貴広
    • Organizer
      日本磁気学会・応用物理学会共催スピントロニクス研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Remarks] 京大と東北大、反強磁性体を用いたスピントルク磁気メモリを実証

    • URL

      https://www.nikkei.com/article/DGXLRSP493501_Y8A011C1000000/

    • Related Report
      2018 Annual Research Report
  • [Patent(Industrial Property Rights)] 磁気メモリ素子及び該磁気メモリ素子に用いる磁性材料2017

    • Inventor(s)
      森山貴広、小野輝男、関剛斎、周偉男、高梨弘毅
    • Industrial Property Rights Holder
      森山貴広、小野輝男、関剛斎、周偉男、高梨弘毅
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-132264
    • Filing Date
      2017
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2022-05-23  

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