Field-Induced Ordering in the Heavy Fermion Compound YbCo2Zn20

被引：6

作者：

Shimura, Yasuyuki ^{[1
]}

Sakakibara, Toshiro ^{[1
]}

Yoshiuchi, Shingo ^{[2
]}

Honda, Fuminori ^{[2
]}

Settai, Rikio ^{[2
]}

Onuki, Yoshichika ^{[2
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] Osaka Univ, Grad Sch Sci, Toyonaka, Osaka 5600043, Japan

来源：

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2011) | 2012年 / 391卷

基金：

日本学术振兴会;

关键词：

SUPERCONDUCTOR PROS4SB12; TRANSITION; RH; RU; CO;

D O I：

10.1088/1742-6596/391/1/012066

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 parallel to [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 similar to 2 T are best explained by a level crossing of the low-lying crystalline-electric-field states by magnetic fields.

引用

页数：4

共 15 条

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