Monte Carlo study of the two-dimensional kinetic Blume-Capel model in a quenched random crystal field

被引:15
|
作者
Vasilopoulos, Alexandros [1 ]
Vatansever, Zeynep Demir [2 ]
Vatansever, Erol [1 ,2 ]
Fytas, Nikolaos G. [1 ]
机构
[1] Coventry Univ, Ctr Fluid & Complex Syst, Coventry CV1 5FB, W Midlands, England
[2] Dokuz Eylul Univ, Dept Phys, TR-35160 Izmir, Turkey
关键词
DYNAMIC PHASE-TRANSITION; ISING-MODEL; MAGNETIC HYSTERESIS; OSCILLATING FIELD; BEHAVIOR; DRIVEN; FREQUENCY; DIAGRAM; SYSTEMS;
D O I
10.1103/PhysRevE.104.024108
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
We investigate by means of Monte Carlo simulations the dynamic phase transition of the two-dimensional kinetic Blume-Capel model under a periodically oscillating magnetic field in the presence of a quenched random crystal-field coupling. We analyze the universality principles of this dynamic transition for various values of the crystal-field coupling at the originally second-order regime of the corresponding equilibrium phase diagram of the model. A detailed finite-size scaling analysis indicates that the observed nonequilibrium phase transition belongs to the universality class of the equilibrium Ising ferromagnet with additional logarithmic corrections in the scaling behavior of the heat capacity. Our results are in agreement with earlier works on kinetic Ising models.
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页数:10
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