Nonequilibrium phase transition in the kinetic Ising model: Critical slowing down and the specific-heat singularity

被引：94

作者：

Acharyya, M ^{[1
]}

机构：

[1] JAWAHARLAL NEHRU CTR ADV SCI RES,CONDENSED MATTER THEORY UNIT,BANGALORE 560064,KARNATAKA,INDIA

来源：

PHYSICAL REVIEW E | 1997年 / 56卷 / 03期

关键词：

D O I：

10.1103/PhysRevE.56.2407

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The nonequilibrium dynamic phase transition, in the kinetic Ising model in the presence of an oscillating magnetic field has been studied both by Monte Carlo simulation and by solving numerically the mean-field dynamic equation of motion for the average magnetization. In both cases, the Debye ''relaxation'' behavior of the dynamic order parameter has been observed and the ''relaxation time'' is found to diverge near the dynamic transition point. The Debye relaxation of the dynamic order parameter and the power law divergence of the relaxation time have been obtained from a very approximate solution of the mean-field dynamic equation. The temperature variation of appropriately defined ''specific heat'' is studied by the Monte Carlo simulation near the transition point. The specific heat has been observed to diverge near the dynamic transition point.

引用

页码：2407 / 2411

页数：5

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