arXiv:2409.20152 · Physical review. E

Monte Carlo study of the two-dimensional kinetic Ising model under a nonantisymmetric magnetic field

Zeynep Demir Vatansever, Erol Vatansever, Andreas Berger, Alexandros Vasilopoulos, Nikolaos G. Fytas

Published Dec 30, 2024• 8 citations

Abstract

We present a comprehensive numerical study of dynamic phase transitions in the two-dimensional kinetic Ising model under a nonantisymmetric time-dependent magnetic field including a sinusoidal term and a second harmonic component. We demonstrate that the expected antisymmetric property and the scaling behavior of the order parameter are maintained using the recently proposed generalized conjugate field approach. Via a detailed finite-size scaling analysis we compute, for zero-bias field, the set of critical exponents suggesting that the Ising universality class is conserved, even in the absence of half-wave antisymmetry in the time-dependent magnetic field. Our results verify up-to-date experimental observations and provide a deeper understanding of nonequilibrium phase transitions, establishing a broader framework for exploring symmetry-breaking phenomena in driven magnetic systems.

DOI: 10.1103/physreve.110.064155

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