Monte Carlo simulation of a random-field Ising antiferromagnet

被引：4
|
作者：
Prudnikov, VV [1 ]
Borodikhin, VN [1 ]
机构：
[1] Omsk State Univ, Omsk 644077, Russia
来源：
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2005年 / 101卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/1.2047794
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Phase transitions in the three-dimensional diluted Ising antiferromagnet in an applied magnetic field are analyzed numerically. It is found that random magnetic field in a system with spin concentration below a certain threshold induces a crossover from second-order phase transition to first-order transition to a new phase characterized by a spin-glass ground state and metastable energy states at finite temperatures. (c) 2005 Pleiades Publishing, Inc.
引用
收藏
页码：294 / 298
页数：5
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