Monte Carlo study of dynamic phase transition in Ising metamagnet driven by oscillating magnetic field

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:323

Article

Acharyya, Muktish

关键词: Ising metamagnet;    Monte Carlo simulation;    Dynamic phase transition;   

DOI  :  10.1016/j.jmmm.2011.06.042

来源: Elsevier

【 摘 要 】

The dynamical responses of Ising metamagnet (layered antiferromagnet) in the presence of a sinusoidally oscillating magnetic field are studied by Monte Carlo simulation. The time average staggered magnetisation plays the role of dynamic order parameter. A dynamical phase transition was observed and a phase diagram was plotted in the plane formed by field amplitude and temperature. The dynamical phase boundary is observed to shrink inward as the relative antiferromagnetic strength decreases. The results are compared with that obtained from pure ferromagnetic system. The shape of dynamic phase boundary observed to be qualitatively similar to that obtained from previous meanfield calculations. (C) 2011 Elsevier B.V. All rights reserved.

【 授权许可】

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