Critical Phenomena in Long-Range RKKY Ising Spin Glasses

被引：2

作者：

Tabata, Yoshikazu ^{[1
]}

Kanada, Satoshi ^{[1
]}

Yamazaki, Teruo ^{[2
]}

Waki, Takeshi ^{[1
]}

Nakamura, Hiroyuki ^{[1
]}

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Kyoto, Japan

[2] Univ Tokyo, Inst Soild State Phys, Chiba, Japan

来源：

INTERNATIONAL CONFERENCE ON FRUSTRATION IN CONDENSED MATTER (ICFCM) | 2011年 / 320卷

关键词：

MAGNETIC-FIELD; PHASE; TRANSITION; ANISOTROPY; MODEL;

D O I：

10.1088/1742-6596/320/1/012051

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have investigated critical phenomena in spin glasses RxY1-xRu2Si2 (R = Dy, Tb, Gd). These compounds, where the magnetic moments of rare-earth ions interact by the long-range Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction via conduction electrons, has uniaxial magnetic anisotropy. The separation of the zero-field-cooled and field-cooled magnetization was found only along the c-axis in all compounds, and hence, they are classified into the long-range Ising spin glass. The magnetic anisotropic energies in these compounds are different from each other in two orders of magnitude, from 330 K to 1.8 K, however, the critical exponents are similar. It clearly indicates a presence of the universality of the long-range RKKY Ising spin glasses.

引用

页数：6

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