論文

査読有り
2013年8月

Spin-Density-Wave-Type Ordering of LaCoGe Revealed by Co-59- and La-139-Nuclear Magnetic Resonance Measurements

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
  • Kosuke Karube
  • ,
  • Taisuke Hattori
  • ,
  • Kenji Ishida
  • ,
  • Nobuhiko Tamura
  • ,
  • Kazuhiko Deguchi
  • ,
  • Noriaki K. Sato

82
8
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.7566/JPSJ.82.083712
出版者・発行元
PHYSICAL SOC JAPAN

The low-temperature magnetic properties of LaCoGe with the tetragonal CeFeSi-type structure were investigated by Co-59- and La-139-nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements. The nuclear spin lattice relaxation rate divided by the temperature, 1/(T1T), gradually increases with decreasing temperature and shows a kink at approximately 18 K, below which an inhomogeneous internal field appears at the Co nuclear site. These results indicate that antiferromagnetic ordering occurs below T-N similar to 18 K. However, an internal field was not observed at the La nuclear site below TN. Taking all NMR results into account, we conclude that spin-density-wave (SDW)-type ordering occurs, where magnetic correlations are of the checkerboard type [Q = (pi, pi)] in the ab-plane and have a long periodicity along the c-axis with inhomogeneous ordered moments pointing to the c-axis.

Web of Science ® 被引用回数 : 4

リンク情報
DOI
https://doi.org/10.7566/JPSJ.82.083712
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000322374300014&DestApp=WOS_CPL
ID情報
  • DOI : 10.7566/JPSJ.82.083712
  • ISSN : 0031-9015
  • Web of Science ID : WOS:000322374300014

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