MISC

2017年11月

Pressure-Induced Superconductivity from Doping-Induced Antiferromagnetic Phase of 112-type Ca1-xLaxFeAs2

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Shunsaku Kitagawa
  • ,
  • Taishi Sekiya
  • ,
  • Yo Fujiyoshi
  • ,
  • Shingo Araki
  • ,
  • Tatsuo C. Kobayashi
  • ,
  • Naoki Nishimoto
  • ,
  • Tasuku Mizukami
  • ,
  • Satoshi Ioka
  • ,
  • Kazunori Fujimura
  • ,
  • Kazutaka Kudo
  • ,
  • Minoru Nohara

86
11
開始ページ
1191
終了ページ
1196
記述言語
英語
掲載種別
DOI
10.7566/JPSJ.86.113705
出版者・発行元
PHYSICAL SOC JAPAN

The effects of pressure on antiferromagnetic (AFM) and superconducting phase transitions of 112-type Ca1-xLaxFeAs2 were studied, and the in-plane electrical resistivity rho(ab) was measured with an indenter-type pressure cell. The AFM phase transition temperatures of T-N = 47, 63, and 63 K at ambient pressure for x = 0.18, 0.21, and 0.26 was suppressed by applying pressure P, with superconductivity emerging at critical pressures of P-c similar or equal to 0, 1.5, and 3.4 GPa, respectively. Correspondingly, the slope of T-N against P decreased as dT(N)/P similar or equal to -15 and -2K/GPa for x = 0.21 and 0.26, respectively. Thus, although the AFM phase was stabilized with La doping x, the AFM phase was suppressed by pressure, and superconductivity eventually emerged.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.7566/JPSJ.86.113705
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000414001900007&DestApp=WOS_CPL

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