Dynamic hysteresis loops of the spin-2 bilayer Ising model

Abstract

Based on the mean-field theory and Glauber-type stochastic dynamics, the dynamic hysteresis loops (DHLs) of the spin-2 Ising model are studied on the bilayer square lattice. the DHLs are given for different values of temperature, crystal-field, exchange interaction and oscillating field frequency. It is found that the physical parameters have a strong effect on the shape and number of the DHLs. the results are compared with some theoretical and experimental works and found in a qualitatively good agreement.