論文

査読有り
2018年1月

Pseudogap Behavior of the Nuclear Spin-Lattice Relaxation Rate in FeSe Probed by Se-77-NMR

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Anlu Shi
  • ,
  • Takeshi Arai
  • ,
  • Shunsaku Kitagawa
  • ,
  • Takayoshi Yamanaka
  • ,
  • Kenji Ishida
  • ,
  • Anna E. Boehmer
  • ,
  • Christoph Meingast
  • ,
  • Thomas Wolf
  • ,
  • Michihiro Hirata
  • ,
  • Takahiko Sasaki

87
1
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.7566/JPSJ.87.013704
出版者・発行元
PHYSICAL SOC JAPAN

We conducted Se-77-nuclear magnetic resonance studies of the iron-based superconductor FeSe in magnetic fields of 0.6 to 19 T to investigate the superconducting and normal-state properties. The nuclear spin-lattice relaxation rate divided by the temperature (T1T)(-1) increases below the structural transition temperature T-s but starts to be suppressed below T*, well above the superconducting transition temperature T-c(H), resulting in a broad maximum of (T1T)(-1) at T-p(H). This is similar to the pseudogap behavior in optimally doped cuprate superconductors. Because T* and T-p(H) decrease in the same manner as T-c(H) with increasing H, the pseudogap behavior in FeSe is ascribed to superconducting fluctuations, which presumably originate from the theoretically predicted preformed pair above T-c(H).

Web of Science ® 被引用回数 : 16

リンク情報
DOI
https://doi.org/10.7566/JPSJ.87.013704
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000417949100005&DestApp=WOS_CPL
ID情報
  • DOI : 10.7566/JPSJ.87.013704
  • ISSN : 0031-9015
  • Web of Science ID : WOS:000417949100005

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