Spin-glass freezing above the ordering temperature for the Kondo antiferromagnet CeNi2Sn2

被引：2

作者：

Sung, LR ^{[1
]}

Yao, YD

Lee, WH

Chen, YY

机构：

[1] Natl Chung Cheng Univ, Dept Phys, Chiayi 621, Taiwan

[2] Acad Sinica, Inst Phys, Taipei, Taiwan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2001年 / 40卷 / 2B期

关键词：

spin-glass; Kondo lattice; magnetic order; CeNi2Sn2;

D O I：

10.1143/JJAP.40.L154

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements of electrical resistivity, magnetic susceptibility and specific heat on an as-cast polycrystal sample CeNi2Sn2 are reported. From the frequency and field dependence of the chi (ae) and chi (de) above TN, a spin glass state with two freezing temperatures T-f1 = 3.9K and T-f2 = 4.4 K corresponding to the tetragonal and monoclinic phases of CeNi2Sn2, separately, are proposed. Some comparable intriguing experimental facts are the behaviors with anomalies observed in C(T), chi (ae)(T) and chi (de)(T) measurements. A qualitative description for the anomalous physical properties of CeNi2Sn2 compound is provided from the viewpoint of spin glass.

引用

页码：L154 / L157

页数：4

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