Details of the Researcher

PHOTO

Elyasi Mehrdad
Section
Advanced Institute for Materials Research
Job title
Assistant Professor
Degree

  • Ｐｈ．Ｄ．（シンガポール国立大学）

Research History 4

  • 2023/01 - Present
    Tohoku University　Advanced Institute for Materials Research (AIMR)　Assistant Professor

  • 2021/12 - 2022/12
    Tohoku University　Advanced Institute for Materials Research (AIMR)　Specially Appointed Assistant professor

  • 2018/12 - 2021/11
    Institute for Materials Research, Tohoku University　Specially Appointed Assistant Professor

  • 2016/12 - 2018/11
    Institute for Materials Research, Tohoku University　JSPS postdoctoral fellow

Education 2

  • National University of Singapore　Electrical and Computer Engineering Department　PhD

    2011/08 - 2016/11

  • Sharif University of Technology　Electrical and Computer Engineering Department　B.Sc.

    2007/09 - 2011/08

Committee Memberships 6

  • Physical Society of Japan　Associate editor, Journal of the Physical Society of Japan

    2025/04 - Present

  • Phys. Rev. B, American Physical Society (APS)　Inaugural Early Career Researcher Advisory Board

    2024/04 - Present

  • Transnational Round Table on Magnetism (TRTM), 2024 and 2025　Program Committee

    2024 - Present

  • IEEE International Magnetics Conference (INTERMAG) 2024, Rio de Janiro, Brazil　Program Committee

    2024 -

  • Spin Cavitronics IV international workshop, Max-Planck Institute for the Science of Light, Erlangen, Germany　Co-chair of organizing committee

    2023 -

  • Joint MMM-Intermag Conference (INTERMAG) 2022, New Orleans, USA　Program Committee

    2022 -

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Research Interests 7

  • Spintronics

  • Magnonics

  • Magnetism

  • Quantum optics

  • Condensed matter physics

  • Topological phases of matter

  • Quantum information

Research Areas 3

  • Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

  • Nanotechnology/Materials / Applied physics - general /

  • Natural sciences / Semiconductors, optical and atomic physics /

Awards 2

  1. Prominent Research Fellow of Tohoku University

    2023/07

  2. Singapore International Graduate Award

    2011/08　Agency for Science, Technology and Research (A*STAR)

Papers 24

  1. Long-range propagation of magnon polaritons in a canted antiferromagnet Peer-reviewed

    Hanchen Wang, Jinlong Wang, Kanglin Yu, Lutong Sheng, Yongjian Zhou, Rundong Yuan, Chensong Hua, Weichao Yu, Junfeng Hu, Jilei Chen, Cheng Song, Jean-Philippe Ansermet, Mehrdad Elyasi, Gerrit Bauer, Haiming Yu

    Physical Review Applied　2025/06/16

    DOI： 10.1103/7kyn-875x 　

    ISSN： 2331-7019

  2. Deterministic switching of perpendicular magnetization by out-of-plane anti-damping magnon torques Peer-reviewed

    Fei Wang, Guoyi Shi, Dongsheng Yang, Hui Ru Tan, Chenhui Zhang, Jiayu Lei, Yuchen Pu, Shuhan Yang, Anjan Soumyanarayanan, Mehrdad Elyasi, Hyunsoo Yang

    Nature Nanotechnology　2024/10

    DOI： 10.1038/s41565-024-01741-y 　

  3. Effect of nonlinear magnon interactions on stochastic magnetization switching Peer-reviewed

    Mehrdad Elyasi, Shun Kanai, Hideo Ohno, Shunsuke Fukami, Gerrit E. W. Bauer

    Physical Review B　2024/09/23

    DOI： 10.1103/PhysRevB.110.094433 　

  4. Nonlinear enhancement of coherent magnetization dynamics Peer-reviewed

    Mehrdad Elyasi, Kei Yamamoto, Tomosato Hioki, Takahiko Makiuchi, Hiroki Shimizu, Eiji Saitoh, Gerrit E. W. Bauer

    Physical Review B　109　(18)　2024/05/02

    Publisher: American Physical Society (APS)

    DOI： 10.1103/physrevb.109.l180402 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  5. Persistent magnetic coherence in magnets Peer-reviewed

    T. Makiuchi, T. Hioki, H. Shimizu, K. Hoshi, M. Elyasi, K. Yamamoto, N. Yokoi, A. A. Serga, B. Hillebrands, G. E. W. Bauer, E. Saitoh

    Nature Materials　2024/05

    DOI： 10.1038/s41563-024-01798-z 　

  6. Temperature dependence of the properties of stochastic magnetic tunnel junction with perpendicular magnetization Peer-reviewed

    Haruna Kaneko, Rikuto Ota, Keito Kobayashi, Shun Kanai, Mehrdad Elyasi, Gerrit E. W. Bauer, Hideo Ohno, Shunsuke Fukami

    Applied Physics Express　2024/05/01

    DOI： 10.35848/1882-0786/ad43b0 　

  7. Soft magnons in anisotropic ferromagnets Peer-reviewed

    G. E. W. Bauer, P. Tang, M. Elyasi, Y. M. Blanter, B. J. van Wees

    Physical Review B　2023/08/28

    DOI： 10.1103/PhysRevB.108.064431 　

  8. Nonlinear Magnon Polaritons Peer-reviewed

    Oscar Lee, Kei Yamamoto, Maki Umeda, Christoph W. Zollitsch, Mehrdad Elyasi, Takashi Kikkawa, Eiji Saitoh, Gerrit E. W. Bauer, Hidekazu Kurebayashi

    Physical Review Letters　130　(4)　046703　2023/01/26

    Publisher: American Physical Society ({APS})

    DOI： 10.1103/physrevlett.130.046703 　

    ISSN： 0031-9007

    eISSN： 1079-7114

  9. Nonlocal Detection of Interlayer Three-Magnon Coupling Peer-reviewed

    Lutong Sheng, Mehrdad Elyasi, Jilei Chen, Wenqing He, Yizhan Wang, Hanchen Wang, Hongmei Feng, Yu Zhang, Israa Medlej, Song Liu, Wanjun Jiang, Xiufeng Han, Dapeng Yu, Jean-Philippe Ansermet, Gerrit E. W. Bauer, Haiming Yu

    Physical Review Letters　2023/01/24

    DOI： 10.1103/PhysRevLett.130.046701 　

  10. Broadband microwave detection using electron spins in a hybrid diamond-magnet sensor chip Peer-reviewed

    Joris J. Carmiggelt, Iacopo Bertelli, Roland W. Mulder, Annick Teepe, Mehrdad Elyasi, Brecht G. Simon, Gerrit E. W. Bauer, Yaroslav M. Blanter, Toeno van der Sar

    Nature Communications　14　(1)　2023/01

    Publisher: Springer Science and Business Media {LLC}

    DOI： 10.1038/s41467-023-36146-3 　

    ISSN： 2041-1723

  11. Roadmap on Spin-Wave Computing Peer-reviewed

    A. V. Chumak, P. Kabos, M. Wu, C. Abert, C. Adelmann, A. O. Adeyeye, J. Akerman, F. G. Aliev, A. Anane, A. Awad, C. H. Back, A. Barman, G. E. W. Bauer, M. Becherer, E. N. Beginin, V. A. S. V. Bittencourt, Y. M. Blanter, P. Bortolotti, I. Boventer, D. A. Bozhko, S. A. Bunyaev, J. J. Carmiggelt, R. R. Cheenikundil, F. Ciubotaru, S. Cotofana, G. Csaba, O. V. Dobrovolskiy, C. Dubs, M. Elyasi, K. G. Fripp, H. Fulara, I. A. Golovchanskiy, C. Gonzalez-Ballestero, P. Graczyk, D. Grundler, P. Gruszecki, G. Gubbiotti, K. Guslienko, A. Haldar, S. Hamdioui, R. Hertel, B. Hillebrands, T. Hioki, A. Houshang, C. -M. Hu, H. Huebl, M. Huth, E. Iacocca, M. B. Jungfleisch, G. N. Kakazei, A. Khitun, R. Khymyn, T. Kikkawa, M. Klaui, O. Klein, J. W. Klos, S. Knauer, S. Koraltan, M. Kostylev, M. Krawczyk, I. N. Krivorotov, V. V. Kruglyak, D. Lachance-Quirion, S. Ladak, R. Lebrun, Y. Li, M. Lindner, R. Macedo, S. Mayr, G. A. Melkov, S. Mieszczak, Y. Nakamura, H. T. Nembach, A. A. Nikitin, S. A. Nikitov, V. Novosad, J. A. Otalora, Y. Otani, A. Papp, B. Pigeau, P. Pirro, W. Porod, F. Porrati, H. Qin, B. Rana, T. Reimann, F. Riente, O. Romero-Isart, A. Ross, A. V. Sadovnikov, A. R. Safin, E. Saitoh, G. Schmidt, H. Schultheiss, K. Schultheiss, A. A. Serga, S. Sharma, J. M. Shaw, D. Suess, O. Surzhenko, K. Szulc, T. Taniguchi, M. Urbanek, K. Usami, A. B. Ustinov, T. van der Sar, S. van Dijken, V. I. Vasyuchka, R. Verba, S. Viola Kusminskiy, Q. Wang, M. Weides, M. Weiler, S. Wintz, S. P. Wolski, X. Zhang

    IEEE Transactions on Magnetics　58　(6)　0800172-72　2022/06

    Publisher: Institute of Electrical and Electronics Engineers (IEEE)

    DOI： 10.1109/tmag.2022.3149664 　

    ISSN： 0018-9464

    eISSN： 1941-0069

  12. Stochasticity of the magnon parametron Peer-reviewed

    Mehrdad Elyasi, Eiji Saitoh, Gerrit E. W. Bauer

    Physical Review B　2022/02/03

    DOI： 10.1103/PhysRevB.105.054403 　

  13. Cryogenic spin Seebeck effect Peer-reviewed

    Mehrdad Elyasi, Gerrit E. W. Bauer

    Physical Review B　103　054436　2021/02/24

    DOI： 10.1103/PhysRevB.103.054436 　

  14. Resources of nonlinear cavity magnonics for quantum information Peer-reviewed

    Mehrdad Elyasi, Yaroslav M. Blanter, Gerrit E. W. Bauer

    Physical Review B　101　054402　2020/02/03

    DOI： 10.1103/PhysRevB.101.054402 　

  15. Topologically nontrivial magnonic solitons Peer-reviewed

    Mehrdad Elyasi, Koji Sato, Gerrit E. W. Bauer

    Physical Review B　99　(13)　2019

    DOI： 10.1103/PHYSREVB.99.134402 　

    ISSN： 2469-9950

  16. Room temperature magnetization switching in topological insulator-ferromagnet heterostructures by spin-orbit torques Peer-reviewed

    Yi Wang, Dapeng Zhu, Yang Wu, Yumeng Yang, Jiawei Yu, Rajagopalan Ramaswamy, Rahul Mishra, Shuyuan Shi, Mehrdad Elyasi, Kie-Leong Teo, Yihong Wu, Hyunsoo Yang

    NATURE COMMUNICATIONS　8　2017/11

    DOI： 10.1038/s41467-017-01583-4 　

    ISSN： 2041-1723

  17. Extrinsic Spin Hall Effect in Cu1-xPtx Peer-reviewed

    Rajagopalan Ramaswamy, Yi Wang, Mehrdad Elyasi, M. Motapothula, T. Venkatesan, Xuepeng Qiu, Hyunsoo Yang

    PHYSICAL REVIEW APPLIED　8　(2)　2017/08

    DOI： 10.1103/PhysRevApplied.8.024034 　

    ISSN： 2331-7019

  18. High-Performance THz Emitters Based on Ferromagnetic/Nonmagnetic Heterostructures Peer-reviewed

    Yang Wu, Mehrdad Elyasi, Xuepeng Qiu, Mengji Chen, Yang Liu, Lin Ke, Hyunsoo Yang

    ADVANCED MATERIALS　29　(4)　2017/01

    DOI： 10.1002/adma.201603031 　

    ISSN： 0935-9648

    eISSN： 1521-4095

  19. Optically induced spin-dependent diffusive transport in the presence of spin-orbit interaction for all-optical magnetization reversal Peer-reviewed

    Mehrdad Elyasi, Hyunsoo Yang

    PHYSICAL REVIEW B　94　(2)　2016/07

    DOI： 10.1103/PhysRevB.94.024417 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  20. Cloaking the magnons Peer-reviewed

    Mehrdad Elyasi, Charanjit S. Bhatia, Cheng-Wei Qiu, Hyunsoo Yang

    PHYSICAL REVIEW B　93　(10)　2016/03

    DOI： 10.1103/PhysRevB.93.104418 　

    ISSN： 2469-9950

    eISSN： 2469-9969

  21. Individual magnetization reversal of a square dot matrix by common current excitation Peer-reviewed

    Mehrdad Elyasi, Charanjit S. Bhatia, Hyunsoo Yang

    JOURNAL OF PHYSICS D-APPLIED PHYSICS　48　(29)　2015/07

    DOI： 10.1088/0022-3727/48/29/295301 　

    ISSN： 0022-3727

    eISSN： 1361-6463

  22. Synchronization of spin-transfer torque oscillators by spin pumping, inverse spin Hall, and spin Hall effects Peer-reviewed

    Mehrdad Elyasi, Charanjit S. Bhatia, Hyunsoo Yang

    JOURNAL OF APPLIED PHYSICS　117　(6)　2015/02

    DOI： 10.1063/1.4907914 　

    ISSN： 0021-8979

    eISSN： 1089-7550

  23. Magnetization reversal using excitation of collective modes in nanodot matrices Peer-reviewed

    Mehrdad Elyasi, Charanjit S. Bhatia, Hyunsoo Yang

    SCIENTIFIC REPORTS　5　2015/01

    DOI： 10.1038/srep07908 　

    ISSN： 2045-2322

  24. Electrical detection of microwave assisted magnetization reversal by spin pumping Peer-reviewed

    Siddharth Rao, Sankha Subhra Mukherjee, Mehrdad Elyasi, Charanjit Singh Bhatia, Hyunsoo Yang

    APPLIED PHYSICS LETTERS　104　(12)　2014/03

    DOI： 10.1063/1.4869488 　

    ISSN： 0003-6951

    eISSN： 1077-3118

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Presentations 16

  1. Many-body magnonic effects on noise and dissipation, prospects in quantum information and transport Invited

    Mehrdad Elyasi

    Topological Quantum Transport workshop, Huangshan, China

  2. Many-body magnonic open systems for quantum application Invited

    Mehrdad Elyasi

    Spin Asia, Chiang-Mai, Thailand

  3. Many-body magnonic open quantum systems Invited

    Mehrdad Elyasi

    Magnonics, Paris, France

  4. Many-body magnonic open quantum systems Invited

    Mehrdad Elyasi

    Spin Caloritronics XII, Tsukuba, Japan

  5. Many-body magnonic open quantum systems Invited

    Mehrdad Elyasi

    Intermag, Sendai, Japan

  6. Magnonic many-body open quantum systems Invited

    Mehrdad Elyasi

    Electrical and Computer Engineering department talk, National Univ. of Singapore, Singapore　2023/03/02

  7. Nonlocal detection of interlayer three magnon coupling Invited

    Mehrdad Elyasi

    Spin Cavitronics IV, Erlangen, Germany

  8. Magnons for quantum information Invited

    Mehrdad Elyasi

    RIKEN-Tohoku symposium

  9. Magnons for quantum information Invited

    Mehrdad Elyasi

    Invited visit and talk, Interdisciplinary Spintronics Research Group, Johannes Gutenberg University Mainz, Mainz, Germany

  10. Magnons for quantum information Invited

    Mehrdad Elyasi

    Invited visit and lecture, Magnetism group, TU Kaiserslautern, Kaiserslautern, Germany

  11. Magnons for quantum information

    Mehrdad Elyasi

    Tohoku-Mainz-Lorraine Conference, Nancy, France

  12. Magnons for quantum information

    Mehrdad Elyasi

    Optomagnonics workshop

  13. Nonlinearity of magnons for quantum information International-presentation Invited

    Mehrdad Elyasi, Yaroslav M. Blanter, Gerrit E. W. Bauer

    The second symposium for world leading research centers (materials science and spintronics), Sendai, Japan　2019/02/18

  14. Cavity magnonics in the nonlinear regime International-presentation

    Mehrdad Elyasi, Yaroslav M. Blanter, Gerrit E. W. Bauer

    SPICE Workshop Spin Cavitronics, Mainz, Germany　2018/05/15

  15. Magnonic solitons in topologically nontrivial gaps

    Mehrdad Elyasi, Koji Sato, Gerrit E. W. Bauer

    Spin Conversion, Kyoto, Japan　2018/03/12

  16. Magnetic anisotropies in optomagnonics International-presentation

    Mehrdad Elyasi, Gerrit E. W. Bauer

    Workshop on Optomagnonics, Erlangen, Germany　2017/06/26

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Research Projects 2

  1. Magnons for quantum information

    ELYASI MEHRDAD

    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

    2021/04/01 - 2024/03/31

    More details Close

    We theoretically explained the experimentally observed stochastic switching (“p-bit” characteristics) of the Ising pseudo-spin of parametrically excited spin waves formed at room temperature. We explained it based on an instability of the uniform magnetization precession in the nonlinear regime which was published as Phys. Rev. B 105, 054403 (2022). We also predicted a dynamical phase of the parametrically excited magnons, which at lower temperatures is quantum correlated with significant distillible magnon entanglement useful for quantum information [arXiv:2111.00365]. These results on the nonlinear parametrically excited magnons can lead to unconventional computing schemes that may supersede conventional computing paradigms. <BR> I have also formed several experimental collaborations on nonlinearity of magnons and have developed theory for several recent experimental observations [e.g. arXiv:2201.10889]. For example, I have explained a reduction in dissipation of the uniform spin wave mode as a result of its three-magnon instability to a pair of magnons with low dissipation rates, which has been observed by Prof. Eiji Saitoh group (Univ. of Tokyo) [manuscript in preparation].

  2. スピントロニクスにおける量子コヒーレンス（理論）

    Bauer Gerrit, ELYASI MEHRDAD, Elyasi Mehrdad

    Offer Organization: 日本学術振興会

    System: 科学研究費助成事業

    Category: 特別研究員奨励費

    Institution: 東北大学

    2016/11/07 - 2019/03/31

    More details Close

    The nonlinearity of spin waves in the context of microwave cavity magnonic was finalized and the findings were presented to the community at SPICE workshop in Mainz (2018) and Max-Planck Light in Erlangen (2018). The corresponding manuscript is in its final iterations between the authors M. Elyasi, Ya. M. Blanter and G. E. W. Bauer, and is soon to be submitted to a high impact factor journal. The results map out the steady states features, such as entanglement and nonclassicality, in the nonlinear phase space of the strongly driven cavity photon-magnon polaritons, using classical (from solution of stochastic equations of motion) and quantum mechanical (from solution of master equations) analysis and computation. The findings pave the way for implementing spin waves in quantum information. The other parallel direction considering nonlinearities in a topologically nontrivial spin lattice equivalent of Haldane model for magnons, led to a complete classification of self-localized spin wave modes, i.e. solitons, in static and dynamic configurations of the lattice. A unique observed feature was a nonlinearity induced topological phase change from nontrivial to trivial by increasing the power of soliton. The reason for this phase change was investigated and formed an important part of the study, which was published as Phys. Rev. B 99, 134402 (2019).