Monte Carlo study of a spin-1 ANNNI model with single-ion anisotropy

被引：1
|
作者：
Alves, N [1 ]
Yokoi, CSO [1 ]
机构：
[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, SP, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2003年 / 256卷 / 1-3期
关键词：
classical spin models; phase transitions; Monte Carlo simulation; magnetic structure-modulated; partially disordered phases;
D O I：
10.1016/S0304-8853(02)00442-0
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A three-dimensional spin-1 axial next-nearest-neighbor Ising model with single-ion anisotropy is studied using Monte Carlo simulations. The analysis of the thermal effect on the commensurate period six phase shows that it undergoes an internal transition from a low-temperature phase with zero magnetization layers (partially disordered phase) to a high-temperature phase with different symmetry. Results are in good qualitative agreement with previous mean-field studies. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：145 / 150
页数：6
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