The magnetic properties of the two-dimensional square lattice mixed-spin anisotropic Heisenberg ferromagnet with a transverse magnetic field

被引：5

作者：

Hu, Ai-Yuan ^{[1
]}

Chen, Yuan ^{[2
]}

Wang, Qin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

[2] Guangzhou Univ, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China

来源：

PHYSICS LETTERS A | 2011年 / 375卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Quantized spin model; Quantum phase transition; Single-ion anisotropy; Heisenberg ferromagnet; GREENS-FUNCTION THEORY; MAGNETORESISTANCE; REORIENTATION; RESISTIVITY; DEPENDENCE; RESONANCE; FILMS;

D O I：

10.1016/j.physleta.2010.12.062

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The two-dimensional square lattice mixed-spin anisotropic Heisenberg ferromagnet with a transverse magnetic field is studied by means of the double-time Green's function. The analytic expressions of the critical temperature, the high-temperature zero-field susceptibilities, the spin-wave velocity, spin-wave stiffness and spin-wave gap are obtained. The phase diagrams in which the critical temperature, the reorientation temperature and the reorientation magnetic field are shown as a function of single-ion anisotropic parameter are discussed. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：927 / 933

页数：7

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