MISC

2004年11月

Strong correlation between field-induced magnetism and superconductivity in Pr0.89LaCe0.11CUO4

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • R Kadono
  • ,
  • K Ohishi
  • ,
  • A Koda
  • ,
  • W Higemoto
  • ,
  • KM Kojima
  • ,
  • M Fujita
  • ,
  • S Kuroshima
  • ,
  • K Yamada

73
11
開始ページ
2944
終了ページ
2947
記述言語
英語
掲載種別
DOI
10.1143/JPSJ.73.2944
出版者・発行元
PHYSICAL SOC JAPAN

We report the local magnetic response of an electron-doped cuprate superconductor, Pr0.89LaCe0.11CuO4-y (T-c similar or equal to 26 K), studied by muon spin rotation (muSR) over a field range from 200 Oe to 50 kOe. In the paramagnetic state, the muon Knight shift along the crystal c-axis (K) is proportional to the in-plane susceptibility chi(ab). More surprisingly, K-mu(z) is strongly enhanced by the occurrence of superconductivity (below similar to40 kOe), changing its sign from positive to negative around -1 kOe with increasing field. This finding can be understood by considering the weak polarization of Pr ions due to the superexchange interaction with the antiferromagnetic Cu sublattice, which coexists with superconductivity.

リンク情報
DOI
https://doi.org/10.1143/JPSJ.73.2944
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000225352200008&DestApp=WOS_CPL
ID情報
  • DOI : 10.1143/JPSJ.73.2944
  • ISSN : 0031-9015
  • Web of Science ID : WOS:000225352200008

エクスポート
BibTeX RIS