Field-induced ordering in the heavy fermion compound YbCo 2Zn20

Yasuyuki Shimura, Toshiro Sakakibara, Shingo Yoshiuchi, Fuminori Honda, Rikio Settai, Yoshichika Onuki

研究成果: Contribution to journalConference article査読

4 被引用数 (Scopus)


DC Magnetization of the heavy-fermion compound YbCo2Zn20 was examined at very-low temperatures down to 0.07 K in the field up to 14.5 T. In addition to the nearly-isotropic metamagnetic behavior at 0.6 T, a new metamagnetic behavior is observed in the field variation of magnetization M(H) at 6 T only for H || [111]. For the same field direction, a clear kink appears in the temperature dependence of the magnetization M(T) for fields above 6 T. These results strongly suggest the existence of a new ordered phase induced by magnetic fields. The H - T phase diagram as well as the anisotropy in M(H) above ∼ 2 T are best explained by a level crossing of the low-lying crystalline-electric- field states by magnetic fields.

ジャーナルJournal of Physics: Conference Series
出版ステータス出版済み - 2012
イベントInternational Conference on Strongly Correlated Electron Systems, SCES 2011 - Cambridge, 英国
継続期間: 8 29 20119 3 2011

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)


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