Quantum criticality and heavy fermion state in YbCo2Zn 20 under pressure and magnetic field

Yuki Taga, Shingo Yoshiuchi, Masahiro Ohya, Jyunya Sakaguchi, Yusuke Hirose, Fuminori Honda, Tetsuya Takeuchi, Rikio Settai, Yoshichika Onuki

研究成果: Article査読

3 被引用数 (Scopus)

抄録

We studied an effect of pressure on the heavy fermion state of YbCo 2Zn20 under magnetic fields. The critical pressure P c, where the electronic state changes from the heavy fermion state to the antiferromagnetic state, is estimated to be Pc≃1.8 GPa. The super-heavy fermion state in the Pc region is found to be strongly destroyed in magnetic fields for H ∥<100>. The field-induced quadrupolar phase, which is most likely realized only for H ∥<100>, is found to be robust even in the antiferromagnetic pressure region.

本文言語English
論文番号SB064
ジャーナルjournal of the physical society of japan
81
SUPPL.B
DOI
出版ステータスPublished - 2012 9
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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