Anomalous metamagnetic behavior of TbCu2Ge2 single crystal

被引：9

作者：

Shigeoka, T ^{[1
]}

Shiraishi, M

Mitamura, H

Uwatoko, Y

Fujiwara, T

Goto, T

机构：

[1] Yamaguchi Univ, Fac Sci, Yamaguchi 7538512, Japan

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

来源：

PHYSICA B-CONDENSED MATTER | 2004年 / 346卷

关键词：

TbCu2Ge2; metamagnetic transition; high-field magnetization process; antiferromagnetism;

D O I：

10.1016/j.physb.2004.01.031

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The magnetic characteristics of the single crystal compound TbCu2Ge2 have been studied by magnetic susceptibility and magnetization measurements. The susceptibility shows two anomalies at T-N = 12.3 K and T-t = 9.3 K. The magnetic easy direction is the [I 10] direction in the basal plane. The magnetization along the easy direction in the basal plane shows a multi-step (at least four steps) metamagnetic process. No significant change of the process is observed at T, A one-step metamagnetic transition appears around 17 T in the hard c-axis magnetization process. This transition persists above TN up to 25 K where the susceptibility shows a broad peak. The origin is unsolved yet. (C) 2004 Elsevier B.V. All rights reserved.

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收藏

页码：112 / 116

页数：5

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