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.
引用
收藏
页码：112 / 116
页数：5
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