Metamagnetic transition in heavy fermion compounds YbT2Zn 20 (T: Co, Rh, Ir)

Yusuke Hirose, Masatoshi Toda, Shingo Yoshiuchi, Shinichi Yasui, Kiyohiro Sugiyama, Fuminori Honda, Masayuki Hagiwara, Koichi Kindo, Rikio Settai, Yoshichika Onuki

研究成果: ジャーナルへの寄稿学術誌査読

24 被引用数 (Scopus)

抄録

We measured the magnetization in high magnetic fields up to 500kOe, together with the magnetic susceptibility, ac-susceptibility and magnetoresistance for heavy fermion compounds YbT2Zn20 (T : Co, Rh, Ir). The metamagnetic behaviour or an abrupt nonlinear increase of magnetization was observed at the magnetic field Hm at temperatures lower than a characteristic temperature Tχmax below which the magnetic susceptibility becomes almost constant : Tχmax = 7.4K and Hm = 97kOe in YbIr2Zn20, T χmax = 5.3K and Hm = 64kOe in YbRh2Zn 20, and Tχmax = 0.32K and Hm = 6kOe in YbCo2Zn20. From the present data and the data in several Ce and U heavy fermion compounds, a simple relation between Tχmax and Hm was obtained : Hm(kOe) = 15Tχmax(K) .

本文言語英語
論文番号012003
ジャーナルJournal of Physics: Conference Series
273
1
DOI
出版ステータス出版済み - 2011
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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