IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v14y2023i1d10.1038_s41467-023-41791-9.html
   My bibliography  Save this article

Direct observation of topological magnon polarons in a multiferroic material

Author

Listed:
  • Song Bao

    (Nanjing University)

  • Zhao-Long Gu

    (Nanjing University)

  • Yanyan Shangguan

    (Nanjing University)

  • Zhentao Huang

    (Nanjing University)

  • Junbo Liao

    (Nanjing University)

  • Xiaoxue Zhao

    (Nanjing University)

  • Bo Zhang

    (Nanjing University)

  • Zhao-Yang Dong

    (Nanjing University of Science and Technology)

  • Wei Wang

    (Nanjing University of Posts and Telecommunications)

  • Ryoichi Kajimoto

    (Japan Atomic Energy Agency (JAEA))

  • Mitsutaka Nakamura

    (Japan Atomic Energy Agency (JAEA))

  • Tom Fennell

    (Paul Scherrer Institute (PSI))

  • Shun-Li Yu

    (Nanjing University
    Nanjing University)

  • Jian-Xin Li

    (Nanjing University
    Nanjing University)

  • Jinsheng Wen

    (Nanjing University
    Nanjing University)

Abstract

Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for magnon polarons, direct spectroscopic evidence of their existence is hardly observed. Here, we report the direct observation of magnon polarons using neutron spectroscopy on a multiferroic Fe2Mo3O8 possessing strong magnon-phonon coupling. Specifically, below the magnetic ordering temperature, a gap opens at the nominal intersection of the original magnon and phonon bands, leading to two separated magnon-polaron bands. Each of the bands undergoes mixing, interconverting and reversing between its magnonic and phononic components. We attribute the formation of magnon polarons to the strong magnon-phonon coupling induced by Dzyaloshinskii-Moriya interaction. Intriguingly, we find that the band-inverted magnon polarons are topologically nontrivial. These results uncover exotic elementary excitations arising from the magnon-phonon coupling, and offer a new route to topological states by considering hybridizations between different types of fundamental excitations.

Suggested Citation

  • Song Bao & Zhao-Long Gu & Yanyan Shangguan & Zhentao Huang & Junbo Liao & Xiaoxue Zhao & Bo Zhang & Zhao-Yang Dong & Wei Wang & Ryoichi Kajimoto & Mitsutaka Nakamura & Tom Fennell & Shun-Li Yu & Jian-, 2023. "Direct observation of topological magnon polarons in a multiferroic material," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
  • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41791-9
    DOI: 10.1038/s41467-023-41791-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-023-41791-9
    File Function: Abstract
    Download Restriction: no

    File URL: https://libkey.io/10.1038/s41467-023-41791-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    References listed on IDEAS

    as
    1. Y. Kajiwara & K. Harii & S. Takahashi & J. Ohe & K. Uchida & M. Mizuguchi & H. Umezawa & H. Kawai & K. Ando & K. Takanashi & S. Maekawa & E. Saitoh, 2010. "Transmission of electrical signals by spin-wave interconversion in a magnetic insulator," Nature, Nature, vol. 464(7286), pages 262-266, March.
    2. Joosung Oh & Manh Duc Le & Ho-Hyun Nahm & Hasung Sim & Jaehong Jeong & T. G. Perring & Hyungje Woo & Kenji Nakajima & Seiko Ohira-Kawamura & Zahra Yamani & Y. Yoshida & H. Eisaki & S. -W. Cheong & A. , 2016. "Spontaneous decays of magneto-elastic excitations in non-collinear antiferromagnet (Y,Lu)MnO3," Nature Communications, Nature, vol. 7(1), pages 1-6, December.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lebing Chen & Chengjie Mao & Jae-Ho Chung & Matthew B. Stone & Alexander I. Kolesnikov & Xiaoping Wang & Naoki Murai & Bin Gao & Olivier Delaire & Pengcheng Dai, 2022. "Anisotropic magnon damping by zero-temperature quantum fluctuations in ferromagnetic CrGeTe3," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. Jianyu Zhang & Mingfeng Chen & Jilei Chen & Kei Yamamoto & Hanchen Wang & Mohammad Hamdi & Yuanwei Sun & Kai Wagner & Wenqing He & Yu Zhang & Ji Ma & Peng Gao & Xiufeng Han & Dapeng Yu & Patrick Malet, 2021. "Long decay length of magnon-polarons in BiFeO3/La0.67Sr0.33MnO3 heterostructures," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    3. Yan Li & Zhitao Zhang & Chen Liu & Dongxing Zheng & Bin Fang & Chenhui Zhang & Aitian Chen & Yinchang Ma & Chunmei Wang & Haoliang Liu & Ka Shen & Aurélien Manchon & John Q. Xiao & Ziqiang Qiu & Can-M, 2024. "Reconfigurable spin current transmission and magnon–magnon coupling in hybrid ferrimagnetic insulators," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    4. Hongru Wang & Jing Meng & Jianjun Lin & Bin Xu & Hai Ma & Yucheng Kan & Rui Chen & Lujun Huang & Ye Chen & Fangyu Yue & Chun-Gang Duan & Junhao Chu & Lin Sun, 2024. "Origin of the light-induced spin currents in heavy metal/magnetic insulator bilayers," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    5. Ha-Leem Kim & Takuma Saito & Heejun Yang & Hiroaki Ishizuka & Matthew John Coak & Jun Han Lee & Hasung Sim & Yoon Seok Oh & Naoto Nagaosa & Je-Geun Park, 2024. "Thermal Hall effects due to topological spin fluctuations in YMnO3," Nature Communications, Nature, vol. 15(1), pages 1-6, December.
    6. Man Yang & Liang Sun & Yulun Zeng & Jun Cheng & Kang He & Xi Yang & Ziqiang Wang & Longqian Yu & Heng Niu & Tongzhou Ji & Gong Chen & Bingfeng Miao & Xiangrong Wang & Haifeng Ding, 2024. "Highly efficient field-free switching of perpendicular yttrium iron garnet with collinear spin current," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    7. Shunsuke Hasegawa & Hodaka Kikuchi & Shinichiro Asai & Zijun Wei & Barry Winn & Gabriele Sala & Shinichi Itoh & Takatsugu Masuda, 2024. "Field control of quasiparticle decay in a quantum antiferromagnet," Nature Communications, Nature, vol. 15(1), pages 1-7, December.
    8. Xiaojian Bai & Shang-Shun Zhang & Hao Zhang & Zhiling Dun & W. Adam Phelan & V. Ovidiu Garlea & Martin Mourigal & Cristian D. Batista, 2023. "Instabilities of heavy magnons in an anisotropic magnet," Nature Communications, Nature, vol. 14(1), pages 1-11, December.
    9. Kun Xu & Ting Lin & Yiheng Rao & Ziqiang Wang & Qinghui Yang & Huaiwu Zhang & Jing Zhu, 2022. "Direct investigation of the atomic structure and decreased magnetism of antiphase boundaries in garnet," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-41791-9. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.