Details of the Researcher

PHOTO

Ryuhei Kohno
Section
International Center for Synchrotron Radiation Innovation Smart
Job title
Assistant Professor
Degree
  • Ph.D.(グルノーブル大学)

  • M.S.(パリサクレー大学)

e-Rad No.
10981673

Research History 1

  • 2023/04 - Present
    Tohoku University International Center for Synchrotron Radiation Innovation Smart Assistant professor

Education 3

  • Université Grenoble Alpes Ph.D.

    2019/10 - 2023/02

  • Univeristé Paris-Saclay Master

    2017/09 - 2019/12

  • The University of Tokyo The Faculty of Engineering Department of Applied Physics

    2013/04 - 2017/03

Committee Memberships 2

  • Iwate Spintronics School Organizer

    2023/09 - Present

  • 東北大学 国際放射光イノベーションスマートセンター 広報委員会

    2023/07 - Present

Research Interests 2

  • Magnonics

  • Spintronics

Research Areas 3

  • Nanotechnology/Materials / Nanostructure physics /

  • Nanotechnology/Materials / Nanomaterials /

  • Nanotechnology/Materials / Applied materials /

Awards 4

  1. プロミネントリサーチフェロー

    2024/07 東北大学

  2. Best Poster Award at Spintec Day

    2022/06 Spintec, CEA Grenoble, Université Grenoble Alpes

  3. 第42回応用物理学会優秀論文賞

    2020/09 公益社団法人 応用物理学会 CoFeB/MgO-based magnetic tunnel junction directly formed on a flexible substrate

  4. フランス政府給費留学生 理系部門

    2018/09 フランス大使館 科学技術部 政府給費留学生担当

Papers 10

  1. Nonlocal magnon transconductance in extended magnetic insulating films. II. Two-fluid behavior Peer-reviewed

    R. Kohno, K. An, E. Clot, V. V. Naletov, N. Thiery, L. Vila, R. Schlitz, N. Beaulieu, J. Ben Youssef, A. Anane, V. Cros, H. Merbouche, T. Hauet, V. E. Demidov, S. O. Demokritov, G. de Loubens, O. Klein

    Physical Review B 108 (14) 2023/10/12

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevb.108.144411  

    ISSN: 2469-9950

    eISSN: 2469-9969

    More details Close

    Editors' Suggestion

  2. Nonlocal magnon transconductance in extended magnetic insulating films. I. Spin diode effect Peer-reviewed

    R. Kohno, K. An, E. Clot, V. V. Naletov, N. Thiery, L. Vila, R. Schlitz, N. Beaulieu, J. Ben Youssef, A. Anane, V. Cros, H. Merbouche, T. Hauet, V. E. Demidov, S. O. Demokritov, G. de Loubens, O. Klein

    Physical Review B 108 (14) 2023/10/12

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevb.108.144410  

    ISSN: 2469-9950

    eISSN: 2469-9969

    More details Close

    Editors' Suggestion

  3. Optimizing the Magnon-Phonon Cooperativity in Planar Geometries Peer-reviewed

    K. An, C. Kim, K.-W. Moon, R. Kohno, G. Olivetti, G. de Loubens, N. Vukadinovic, J. Ben Youssef, C. Hwang, O. Klein

    Physical Review Applied 20 (1) 2023/07/21

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevapplied.20.014046  

    eISSN: 2331-7019

  4. Transconductance non locale des magnons dans couches d'isolants magnétiques étendues Peer-reviewed

    Ryuhei Kohno

    HAL these 2023/06

    Publisher: Université Grenoble Alpes

  5. Bright and Dark States of Two Distant Macrospins Strongly Coupled by Phonons Peer-reviewed

    K. An, R. Kohno, A. N. Litvinenko, R. L. Seeger, V. V. Naletov, L. Vila, G. de Loubens, J. Ben Youssef, N. Vukadinovic, G. E. W. Bauer, A. N. Slavin, V. S. Tiberkevich, O. Klein

    Physical Review X 12 (1) 2022/03/29

    Publisher: American Physical Society ({APS})

    DOI: 10.1103/PhysRevX.12.011060  

  6. Short-range thermal magnon diffusion in magnetic garnet Peer-reviewed

    K. An, R. Kohno, N. Thiery, D. Reitz, L. Vila, V. V. Naletov, N. Beaulieu, J. Ben Youssef, G. de Loubens, Y. Tserkovnyak, O. Klein

    Physical Review B 2021/05/26

    DOI: 10.1103/PhysRevB.103.174432  

  7. Enhancement of YIG|Pt spin conductance by local Joule annealing Peer-reviewed

    R. Kohno, N. Thiery, K. An, P. Noel, L. Vila, V. V. Naletov, N. Beaulieu, J. Ben Youssef, G. de Loubens, O. Klein

    Applied Physics Letters 2021/01/18

    DOI: 10.1063/5.0028664  

  8. Domain wall propagation by spin-orbit torques in in-plane magnetized systems Peer-reviewed

    R. Kohno, J. Sampaio, S. Rohart, A. Thiaville

    Physical Review B 102 (2) 2020/07/24

    Publisher: American Physical Society ({APS})

    DOI: 10.1103/PhysRevB.102.020410  

  9. Coherent long-range transfer of angular momentum between magnon Kittel modes by phonons Peer-reviewed

    K. An, A. N. Litvinenko, R. Kohno, A. A. Fuad, V. V. Naletov, L. Vila, U. Ebels, G. de Loubens, H. Hurdequint, N. Beaulieu, J. Ben Youssef, N. Vukadinovic, G. E. W. Bauer, A. N. Slavin, V. S. Tiberkevich, O. Klein

    Physical Review B 101 (6) 2020/02/21

    Publisher: American Physical Society (APS)

    DOI: 10.1103/physrevb.101.060407  

    ISSN: 2469-9950

    eISSN: 2469-9969

  10. CoFeB/MgO-based magnetic tunnel junction directly formed on a flexible substrate Peer-reviewed

    Shinya Ota, Masaki Ono, Hiroki Matsumoto, Akira Ando, Tsuyoshi Sekitani, Ryuhei Kohno, Shogo Iguchi, Tomohiro Koyama, Daichi Chiba

    Applied Physics Express 12 (5) 053001-053001 2019/04/10

    Publisher: IOP Publishing

    DOI: 10.7567/1882-0786/ab0dca  

    ISSN: 1882-0778

    eISSN: 1882-0786

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Presentations 19

  1. XMCD imaging of magnetic domain structure of van der Waals ferromagnet Fe₃GaTe₂ at NanoTerasu International-presentation

    Ryuhei Kohno

    Iwate Spintronics School 2025 Winter 2025/02/19

  2. BL14Uを用いた二次元層状強磁性体のXMCDイメージング Invited

    河野竜平

    東北大学SRIS NanoTerasuセミナーシリーズ 2025/01/22

  3. Amplified transport of low-energy magnons in Bi- doped YIG by local heating International-presentation Invited

    Ryuhei Kohno

    SpinX 2024 2024/12/10

  4. Enhanced non-linear growth of magnon transconductance in a Bi-doped YIG with a perpendicular anisotropy

    Ryuhei Kohno, Kyongmo An, Eric Clot, Vladimir Naletov, Nicolas Thiery, Laurent Vila, Richard Schlitz, Nathan Beaulieu, Jamal Ben Youssef, Abdelmadjid Anane, Vincent Cros, Hugo Merbouche, Thomas Hauet, Vlad Demidov, Sergej Demokritov, Gregoire de Leubens, Olivier Klein

    第85回応用物理学会秋季学術講演会 2024/09/16

  5. Two-fluid behavior of magnon transport in extended YIG films

    Ryuhei Kohno, Kyongmo An, Eric Clot, Vladimir Naletov, Nicolas Thiery, Laurent Vila, Richard Schlitz, Nathan Beaulieu, Jamal Ben Youssef, Abdelmadjid Anane, Vincent Cros, Hugo Merbouche, Thomas Hauet, Vlad Demidov, Sergej Demokritov, Gregoire de Leubens, Olivier Klein

    第71回応用物理学会春季学術講演会 2024/03/23

  6. Amplified transport of low-energy magnons in Bi-doped YIG by local heating

    Ryuhei Kohno, Kyongmo An, Vladimir Naletov, Jamal Ben Youssef, Diane Gouere, Vincent Cros, Abdelmadjid Anane, Gregoire de Leubens, Laurent Vila, Olivier Klein

    2023/09

  7. Amplified transport of low-energy magnons in Bi-doped YIG by local heating

    Ryuhei Kohno, Kyongmo An, Vladimir Naletov, Jamal Ben Youssef, Diane Gouere, Vincent Cros, Abdelmadjid Anane, Gregoire de Leubens, Laurent Vila, Olivier Klein

    2023/09

  8. Spin diode effect in extended magnetic insulating films

    Ryuhei Kohno, Kyongmo An, Eric Clot, Vladimir Naletov, Nicolas Thiery, Laurent Vila, Richard Schlitz, Nathan Beaulieu, Jamal Ben Youssef, Abdelmadjid Anane, Vincent Cros, Hugo Merbouche, Thomas Haue, Vlad Demidov, Sergej Demokritov, Gregoire de Leubens, Olivier Klein

    2023/09

  9. Non-local magnon transconductance in extended rare-earth magnetic garnet films International-presentation Invited

    Ryuhei Kohno

    REIMEI-GIMRT workshop "Quantum Beams Study of the Dynamics of Rare Earth Garnets" 2023/08/08

  10. Amplified transport of low-energy magnons in Bi-doped YIG by local heating

    R. Kohno, K. An, V. V. Naletov, J. Ben Youssef, D. Gouéré, V. Cros, A. Anane, G. de Leubens, L. Vila, O. Klein

    Spin Caloritronics XII 2023/05/23

  11. Spin diode effect in extended magnetic insulating films

    Ryuhei Kohno, Nicolas Thiery, Eric Clot, Richard Schlitz, Kyongmo An, Vladimir Naletov, Laurent Vila, Nathan Beaulieu, Jamal Ben Youssef, Hugo Merbouche, Vincent Cros, Abdelmadjid Anane, Thomas Hauet, Vlad Demidov, Sergej Demokritov, Grégoire de Loubens, Olivier Klein

    Intermag 2023 Sendai 2023/05/19

  12. Spin diode effect in magnetic garnets

    R. Kohno, K. An, N. Thiery, L. Vila, V.V. Naletov, J. Ben Youssef, H. Merbouche, V, Cros, A. Anane, T Hauet, V. Demidov, S. Demokritov, G. de Loubens, O. Klein

    ICMFS 2022 Okinawa 2022/07

  13. Spin diode effect in extended magnetic garnet thin films

    R. Kohno, N. Thiery, K. An, V. V. Naletov, L. Vila, J. Ben Youssef, H. Merbouche, V. Cros, A. Anane, T. Hauet, V. E. Demidov, S. O. Demokritov, G. de Leubens, O. Klein

    20ème Colloque Louis Néel 2022/06

  14. Spin diode effect in magnetic garnets

    R. Kohno, K. An, N. Thiery, L. Vila, V.V. Naletov, J. Ben Youssef, H. Merbouche, V, Cros, A. Anane, T Hauet, V. Demidov, S. Demokritov, G. de Loubens, O. Klein

    Joint MMM-Intermag 2022 New Orleans 2022/01

  15. Short-range Thermal Magnon Diffusion in Magnetic Garnet

    R. Kohno, K.An, N. Thiery, D. Reitz, L. Vila, V.V. Naletov, N. Beaulieu, J. Ben Youssef, G. de Loubens, Y. Tserkovnyak, O. Klein

    Intermag 2021 Lyon (Online) 2021/04

  16. Enhancement of YIG|Pt spin conductivity by local Joule annealing

    R. Kohno, N. Thiery, K. An, P. Noel, L. Vila, V.V. Naletov, N. Beaulieu, J. Ben Youssef, G. de Loubens, O. Klein

    MMM Conference 2020 Florida (Online) 2020/11

  17. Domain wall propagation by spin-orbit torques in in-plane magnetized systems

    R. Kohno, J. Sampaio, S. Rohart, A. Thiaville

    2019/09

  18. Domain wall propagation by spin-orbit torques in in-plane magnetized systems

    R. Kohno, J. Sampaio, S. Rohart, A. Thiaville

    2019/09

  19. Domain wall phase diagram of in-plane systems with interfacial anisotropy

    R. Kohno, J. Sampaio, R. Ferreira, A. Thiaville

    Joint European Magnetic Symposia 2018 at Mainz 2018/09

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Research Projects 4

  1. 二次元層状磁性体で展開するエラストマグノニクス

    河野 竜平

    Offer Organization: 科学技術振興機構

    System: 戦略的な研究開発の推進 戦略的創造研究推進事業 ACT-X

    Institution: 東北大学

    2024/09 - 2026/03

    More details Close

    物性を自在に制御することは革新的デバイスの開発に直結します。本研究では「ひずみ」という汎用操作を用いることにより磁性相状態を司り、付随した動的特性の可逆自在制御を行います。バルクを凌駕する機械特性を持つ二次元層状物質に着目することで、GHz~THzにわたるワイドバンドな磁気共鳴周波数の変調をひずみにより実現し、超高速磁気デバイスへの道筋、すなわちエラストマグノニクスを開拓します。

  2. 強磁性二次元層状物質のひずみによるリバーシブル磁性制御

    河野 竜平

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 若手研究

    Institution: 東北大学

    2024/04 - 2026/03

  3. 2次元材料におけるゲート誘起周期構造の開発

    篠﨑 基矢, 河野竜平, 五十嵐純太

    Offer Organization: 東北大学

    System: 附置研究所 若手研究者アンサンブルグラント

    Institution: 東北大学

    2024/06 - 2025/03

  4. ウェアラブルマイクロ波デバイス開発に向けたエラストマグノニクスの確立

    Offer Organization: 公益財団法人昭特科学振興財団

    System: 2023年度(第6回)一般研究助成金

    2023/09 - 2024/05