論文

査読有り
2011年2月

Abrupt recovery of Fermi-liquid transport following the collapse of the c axis in CaFe2(As1-xPx)(2) single crystals

PHYSICAL REVIEW B
  • S. Kasahara
  • ,
  • T. Shibauchi
  • ,
  • K. Hashimoto
  • ,
  • Y. Nakai
  • ,
  • H. Ikeda
  • ,
  • T. Terashima
  • ,
  • Y. Matsuda

83
6
開始ページ
060505(R)-1
終了ページ
060505(R)-4
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevB.83.060505
出版者・発行元
AMER PHYSICAL SOC

Single crystals of CaFe2(As1-xPx)(2) are found to exhibit the tetragonal (T) to collapsed-tetragonal (cT) transition at T-cT less than or similar to 100 K for x > 0.05. The c-axis shrinks by similar to 9% below T-cT, which substantially diminishes the interband nesting between the hole and electron bands. In sharp contrast to the superconducting T phase of AFe(2)(As1-xPx)(2) (A = Ba, Sr), where the anomalous non-Fermi liquid transport properties are observed, the resistivity, Hall coefficient, and magnetoresistance data in the Ca-based system all indicate that the standard Fermi liquid behaviors are recovered abruptly below T-cT, and the superconductivity disappears completely. The simultaneous disappearance of the superconductivity and the non-Fermi liquid transport enlightens the essential role of interband-associated fluctuations to the superconductivity in Fe pnictides.

リンク情報
DOI
https://doi.org/10.1103/PhysRevB.83.060505
J-GLOBAL
https://jglobal.jst.go.jp/detail?JGLOBAL_ID=201102284815917535
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000287584400005&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevB.83.060505
  • ISSN : 1098-0121
  • J-Global ID : 201102284815917535
  • Web of Science ID : WOS:000287584400005

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