Compensation temperature of the two-dimension mixed spin-1 and spin-3/2 anisotropic Heisenberg ferrimagnet

被引：8
|
作者：
Liu, Yu [1 ]
Hu, Ai-Yuan [2 ]
Wang, Huai-Yu [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
[2] Chongqing Normal Univ, Sch Phys & Elect Engn, Chongqing 401331, Peoples R China
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2016年 / 411卷
基金：
中国国家自然科学基金;
关键词：
Ferrimagnetic system; Compensation temperature; Critical temperature; Anisotropy; Thermodynamic function; GREENS-FUNCTION THEORY; MAGNETIC REORIENTATION; ISING SYSTEM; MODEL;
D O I：
10.1016/j.jmmm.2016.03.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study a two-dimensional Heisenberg ferrimagnet composed of spin-1 and spin-3/2 sublattices considering both exchange and single-ion anisotropies. The adjoint effects of the two anisotropies on the possible compensation point are investigated. It is concluded that a primary condition for the compensation point to appear is that the single-ion anisotropy of the smaller spins should be nonzero and be greater than a certain value which depends on other parameters. The exchange anisotropy can raise the compensation point slightly. The thermodynamic functions are evaluated. All the thermodynamic functions with various parameter values are smooth no matter whether there is a compensation point or not. Thus, from the thermodynamic functions, one is unable to judge if the compensation occurs. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：55 / 61
页数：7
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