Monte Carlo study of a superlattice mixed spins under a crystal and external magnetic fields

TL;DR

This study uses Monte Carlo simulations to analyze how external and crystal magnetic fields influence the phase diagrams, magnetizations, susceptibilities, and hysteresis behavior of a superlattice with mixed spins (1/2, 1).

Contribution

It provides new insights into the combined effects of external and crystal magnetic fields on mixed-spin superlattices through comprehensive Monte Carlo analysis.

Findings

Ground state phase diagrams were established under various magnetic fields.

Temperature increases affect magnetization and susceptibility behaviors.

Lower temperatures increase coercive magnetic fields in hysteresis loops.

Abstract

In this paper, we study the effect of both an external and crystal magnetic fields for a superlattice with mixed spins (1/2, 1), using Monte Carlo simulations. The ground state phase diagrams, in the external magnetic field, coupling constant and the crystal magnetic field planes, were established. The effect of increasing temperatures has also been established showing the behavior of the magnetizations and susceptibilities, for fixed crystal field values. In particular, the obtained results as well as in the ground state phase diagrams, as for non null temperature are obtained for fixed external magnetic and crystal field values. On the other hand, the effect of the temperature on the hysteresis loops is presented showing that the decreasing temperature effect is to increase the absolute values of the corresponding coercitif magnetic field.