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
- 巻
- 82
- 号
- 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.
- 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