Pressure Effect on the Specific Heat of CeNi Single Crystal

Shigeru Takayanagi; Shingo Araki; Rikio Settai; Yoshichika Onuki; Nobuo Mori

doi:10.1143/jpsj.70.753

Journal of the Physical Society of Japan

Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015

Pressure Effect on the Specific Heat of CeNi Single Crystal

Shigeru Takayanagi, Shingo Araki, Rikio Settai, Yoshichika Onuki, Nobuo Mori

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Keywords: pressure effects, intermediate valence, CeNi

JOURNAL RESTRICTED ACCESS

2001 Volume 70 Issue 3 Pages 753-755

DOI https://doi.org/10.1143/jpsj.70.753

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Abstract

We have studied the pressure dependence of the specific heat in a CeNi single crystal using a clamp-type pressure-cell up to 0.8 GPa. The pressure dependence of the electronic specific heat coefficient is found to exhibit a sharp drop at 0.3-0.4 GPa. The present result indicates the instability of a mixed valence state of 4f electrons.

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