Bilayer Ising system designed with half-integer spins: Magnetic hysteresis, compensation behaviors and phase diagrams

Abstract

In this paper, within the framework of the effective-field theory with correlation, mixed spin-1/2 and spin-3/2 bilayer system on a square lattice is studied. The characteristic behaviors for the magnetic hysteresis, compensation types and phase diagrams depending on effect of the surface and interface exchange parameters as well as crystal field are investigated. From the behavior of total magnetization as a function of the magnetic field and temperature, we obtain the single, double and triple hysteresis loops and the [Formula: see text]-, [Formula: see text]-, [Formula: see text]-, [Formula: see text]-, and [Formula: see text]-type compensation behaviors in the system. Moreover, we detect the more effective the [Formula: see text] and crystal field parameters on the bilayer Ising model according to the behaviors of the phase diagrams.