Effect of crystal field and external magnetic field on the magnetic and thermodynamic properties of the Ising mixed spin (1-1/2-1) three layers system of cubic structure

TL;DR

This study uses Monte Carlo simulations to analyze how crystal field and magnetic interactions influence the phase diagrams, magnetic, and thermodynamic properties of a three-layer mixed spin (1-1/2-1) cubic system, revealing critical effects on compensation and critical temperatures.

Contribution

It provides detailed insights into the impact of crystal field on the magnetic and thermodynamic behavior of a layered mixed-spin system, highlighting the conditions for compensation temperature and hysteresis phenomena.

Findings

Crystal field significantly affects compensation and critical temperatures.

Presence of double-peak phenomena in susceptibility and specific heat.

Two-step hysteresis loops observed at various parameters.

Abstract

In this work, Monte Carlo simulation was implemented to study the phase diagrams and magnetic properties of a mixed spin (1-1/2-1) three-layer system with a cubic structure. In particular, the effects of the exchange and coupling parameters on the system compensation temperature were explored. More importantly, the effect of the crystal field on the system compensation, critical temperatures, and magnetic and thermodynamic properties of the system have been explored in detail. The crystal field was found to have a profound impact on the system compensation and critical temperatures. Our results suggest that the presence of the crystal field will cause the compensation temperature to exist for a short range of negative crystal field values. Furthermore, the threshold values of the crystal field were found to determine the change in both the compensation and critical temperatures with the variation of the crystal field. The double-peak phenomena confirmed these results in the susceptibility and specific heat curves. Finally, the system magnetic hysteresis loops were studied for different temperatures and crystal field values, revealing the presence of two-step hysteresis loops for several values of these parameters.