論文

査読有り
2014年10月

Cooperative Order in the Weakly Magnetic Domain of LaFeAsO1-xFx near the Doping Phase Boundary

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Masatoshi Hiraishi
  • ,
  • Ryosuke Kadono
  • ,
  • Masanori Miyazaki
  • ,
  • Ichihiro Yamauchi
  • ,
  • Akihiro Koda
  • ,
  • Kenji M. Kojima
  • ,
  • Motoyuki Ishikado
  • ,
  • Shuichi Wakimoto
  • ,
  • Shin-Ichi Shamoto

83
10
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.7566/JPSJ.83.103707
出版者・発行元
PHYSICAL SOC JAPAN

Spatial phase separation into mesoscopic domains of non-magnetic [superconducting (SC) below T-c similar or equal to 25.5 K] and two kinds of magnetic phases, one showing disordered spin density wave (d-SDW) order and another associated with glassy weak magnetism (WM), are observed below similar to 100K by muon spin rotation (mu SR) in LaFeAsO1-xFx for x = 0.057(3), which is near the boundary of these phases on the doping phase diagram. In contrast to the competing order observed in the regular SDW phase of Ba(Fe1-xCox)(2)As-2, the WM domain exhibits cooperative coupling of superconducting and magnetic order parameters as inferred from strong diamagnetism and the associated negative shift of mu SR frequency just below T-c.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.7566/JPSJ.83.103707
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000342108300007&DestApp=WOS_CPL