Magnetic properties in the Ising-mixed spin-1/2-spin-1 superlattice

被引：11

作者：

Du, A ^{[1
]}

Liu, HJ ^{[1
]}

Wang, B ^{[1
]}

机构：

[1] Northeastern Univ, Coll Sci, Shenyang 110004, Peoples R China

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2004年 / 342卷 / 3-4期

关键词：

magnetic superlattice; Ising model; expanded Bethe-Peierls approximation; magnetization; initial susceptibility;

D O I：

10.1016/j.physa.2004.05.046

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An expanded Bethe-Peierls approximation is used to study the magnetic properties of the magnetic superlattice, which consists of a mixed spin-1/2 and spin-1 (with a single-ion anisotropy D) alternate ferromagnetic monolayers with antiferromagntic coupling at the interlayers. By using the transfer matrix method, we calculate the magnetization and the initial susceptibility as functions of temperature for different interlayer coupling, single-ion anisotropy and the relative intralayer interaction. We summarize the behaviors of the temperature dependence of the layered magnetizations, total magnetization and the initial susceptibility, and explain the reason that two peaks appears in the initial susceptibility curve in some parameter range. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：583 / 596

页数：14

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