論文

査読有り
2013年10月

Microscopic evidence of a crossover to a low-temperature intermediate valence state in YbCo2Zn20

Journal of the Physical Society of Japan
  • Takeshi Mito
  • ,
  • Hiroki Hara
  • ,
  • Takuma Ishida
  • ,
  • Keitaro Nakagawara
  • ,
  • Takehide Koyama
  • ,
  • Koichi Ueda
  • ,
  • Takao Kohara
  • ,
  • Kenji Ishida
  • ,
  • Kazuyuki Matsubayashi
  • ,
  • Yuta Saiga
  • ,
  • Yoshiya Uwatoko

82
10
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.7566/JPSJ.82.103704

The low-temperature properties of YbCo2Zn20, which shows a giant specific heat at low temperatures, have been studied by the 59Co-nuclear quadrupole resonance (NQR) technique. The measurement of spin lattice relaxation rate reveals that Yb 4f-electrons unusually persist in a well-localized regime down to at least 0.3K without ordering magnetically. With further lowering temperature, NQR frequency decreases below 0.2K reflecting the lowtemperature Fermi liquid state, even suggesting a crossover to an intermediate valence state in close proximity to the localized-delocalzied transition. We also compare the observed unique properties of YbCo 2Zn20 with those of YbRh2Si2, which shows antiferromagnetic ordering at extremely low temperature. © 2013 The Physical Society of Japan.

Web of Science ® 被引用回数 : 7

リンク情報
DOI
https://doi.org/10.7566/JPSJ.82.103704
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000325108000009&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84885015455&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84885015455&origin=inward
ID情報
  • DOI : 10.7566/JPSJ.82.103704
  • ISSN : 0031-9015
  • ISSN : 1347-4073
  • eISSN : 1347-4073
  • SCOPUS ID : 84885015455
  • Web of Science ID : WOS:000325108000009

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