Transport and magnetic properties of new heavy-fermion antiferromagnet YbNi3Al9

被引：33

作者：

Ohara, S. ^{[1
]}

Yamashita, T. ^{[1
]}

Mori, Y. ^{[1
]}

Sakamoto, I. ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Engn Phys Elect & Mech, Grad Sch Engn, Nagoya, Aichi 4668555, Japan

来源：

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2010) | 2011年 / 273卷

关键词：

D O I：

10.1088/1742-6596/273/1/012048

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have synthesized a new Yb-based Kondo-lattice compound YbNi3Al9. This compound crystallizes in a trigonal ErNi3Al9-type structure (space group R32), in which the Yb-ion is arranged in a two-dimensional honey-comb lattice perpendicular to the c-axis. We report the first measurements of electrical resistivity and magnetization for single-crystalline samples of YbNi3Al9. The electrical resistivity of YbNi3Al9 is characteristic of the typical properties of heavy-fermion antiferromagnets with a Neel temperature of T-N = 3.4K. The transport and magnetic properties exhibit large anisotropy in the low-temperature region owing to an interplay among the crystalline-electric-field effect, the Ruderman-Kittel-Kasuya-Yoshida interaction, and the Kondo effect. Below T-N, the metamagnetic transition is observed at a very low magnetic field of around 1 kOe with the field applied along the a-axis. The magnetic structure of YbNi3Al9 is highly sensitive to the applied magnetic field.

引用

页数：4

共 4 条

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