Phase diagram of the mixed Ising model with Fe4N structure under a time-dependent oscillating magnetic field

Xiaoling Shi, Jie Zhao and Xingguang Xu

Physica A: Statistical Mechanics and its Applications, 2015, vol. 419, issue C, 234-240

Abstract: The mean-field theory (MFT) is used to study the dynamical response of the mixed spin-1 and spin-3/2 Ising model with Fe4N structure in the presence of a sinusoidal oscillating magnetic field. The Glauber dynamic is used to describe the time evolution of the system and the mean-field dynamic equations are given. Dynamic phase transition diagrams are presented in the T/|J|−h0/|J| plane. The dependence of the phase diagram on single-ion anisotropy strengths is also studied by the MFT. Besides second-order phase transition, lines of first-order phase transition, the dynamic tricritical point and the critical end point are found. In particular, the system exhibits first-order–order phase transitions, which cannot be found in previous studies in the mixed spin-1 and spin-3/2 Ising model using the MFT.

Keywords: Mixed Ising model with Fe4N structure; Mean-field theory; Glauber dynamic; Dynamic phase transition (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:419:y:2015:i:c:p:234-240

DOI: 10.1016/j.physa.2014.10.020

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