IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v12y2021i1d10.1038_s41467-021-23381-9.html
   My bibliography  Save this article

Dynamic fingerprint of fractionalized excitations in single-crystalline Cu3Zn(OH)6FBr

Author

Listed:
  • Ying Fu

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Miao-Ling Lin

    (State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
    Center of Materials Science and Optoelectronics Engineering & CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences)

  • Le Wang

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Qiye Liu

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Lianglong Huang

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Wenrui Jiang

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Zhanyang Hao

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Cai Liu

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Hu Zhang

    (College of Physics Science and Technology, Hebei University)

  • Xingqiang Shi

    (College of Physics Science and Technology, Hebei University)

  • Jun Zhang

    (State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
    Center of Materials Science and Optoelectronics Engineering & CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences
    Beijing Academy of Quantum Information Science)

  • Junfeng Dai

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Dapeng Yu

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology)

  • Fei Ye

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology
    Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology)

  • Patrick A. Lee

    (Department of Physics, Massachusetts Institute of Technology)

  • Ping-Heng Tan

    (State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences
    Center of Materials Science and Optoelectronics Engineering & CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences
    Beijing Academy of Quantum Information Science)

  • Jia-Wei Mei

    (Shenzhen Institute for Quantum Science and Engineering, and Department of Physics, Southern University of Science and Technology
    Shenzhen Key Laboratory of Advanced Quantum Functional Materials and Devices, Southern University of Science and Technology)

Abstract

Beyond the absence of long-range magnetic orders, the most prominent feature of the elusive quantum spin liquid (QSL) state is the existence of fractionalized spin excitations, i.e., spinons. When the system orders, the spin-wave excitation appears as the bound state of the spinon-antispinon pair. Although scarcely reported, a direct comparison between similar compounds illustrates the evolution from spinon to magnon. Here, we perform the Raman scattering on single crystals of two quantum kagome antiferromagnets, of which one is the kagome QSL candidate Cu3Zn(OH)6FBr, and another is an antiferromagnetically ordered compound EuCu3(OH)6Cl3. In Cu3Zn(OH)6FBr, we identify a unique one spinon-antispinon pair component in the E2g magnetic Raman continuum, providing strong evidence for deconfined spinon excitations. In contrast, a sharp magnon peak emerges from the one-pair spinon continuum in the Eg magnetic Raman response once EuCu3(OH)6Cl3 undergoes the antiferromagnetic order transition. From the comparative Raman studies, we can regard the magnon mode as the spinon-antispinon bound state, and the spinon confinement drives the magnetic ordering.

Suggested Citation

  • Ying Fu & Miao-Ling Lin & Le Wang & Qiye Liu & Lianglong Huang & Wenrui Jiang & Zhanyang Hao & Cai Liu & Hu Zhang & Xingqiang Shi & Jun Zhang & Junfeng Dai & Dapeng Yu & Fei Ye & Patrick A. Lee & Ping, 2021. "Dynamic fingerprint of fractionalized excitations in single-crystalline Cu3Zn(OH)6FBr," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23381-9
    DOI: 10.1038/s41467-021-23381-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-021-23381-9
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-021-23381-9?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
    ---><---

    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:12:y:2021:i:1:d:10.1038_s41467-021-23381-9. 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.

    We have no bibliographic references for this item. You can help adding them by using 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.