論文

2017年6月

Gapped Spin-1/2 Spinon Excitations in a New Kagome Quantum Spin Liquid Compound Cu3Zn(OH)(6)FBr

CHINESE PHYSICS LETTERS
  • Zili Feng
  • ,
  • Zheng Li
  • ,
  • Xin Meng
  • ,
  • Wei Yi
  • ,
  • Yuan Wei
  • ,
  • Jun Zhang
  • ,
  • Yan-Cheng Wang
  • ,
  • Wei Jiang
  • ,
  • Zheng Liu
  • ,
  • Shiyan Li
  • ,
  • Feng Liu
  • ,
  • Jianlin Luo
  • ,
  • Shiliang Li
  • ,
  • Guo-qing Zheng
  • ,
  • Zi Yang Meng
  • ,
  • Jia-Wei Mei
  • ,
  • Youguo Shi

34
7
開始ページ
301
終了ページ
308
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1088/0256-307X/34/7/077502
出版者・発行元
IOP PUBLISHING LTD

We report a new kagome quantum spin liquid candidate Cu3Zn(OH)(6)FBr, which does not experience any phase transition down to 50 mK, more than three orders lower than the antiferromagnetic Curie-Weiss temperature (similar to 200 K). A clear gap opening at low temperature is observed in the uniform spin susceptibility obtained from F-19 nuclear magnetic resonance measurements. We observe the characteristic magnetic field dependence of the gap as expected for fractionalized spin-1/2 spinon excitations. Our experimental results provide firm evidence for spin fractionalization in a topologically ordered spin system, resembling charge fractionalization in the fractional quantum Hall state.

Web of Science ® 被引用回数 : 40

リンク情報
DOI
https://doi.org/10.1088/0256-307X/34/7/077502
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000410696400058&DestApp=WOS_CPL