Magnetic hysteresis in Ising-like dipole-dipole model

TL;DR

This study uses zero temperature Monte Carlo simulations to analyze magnetic hysteresis in a 3D Ising model with exchange and dipolar interactions, revealing metastable states and hysteresis behavior.

Contribution

It provides new insights into the metastable states and hysteresis phenomena in a 3D Ising model with dipolar interactions through detailed simulations.

Findings

Hysteresis appears in the model as expected.

Metastable states develop during magnetic field cycling.

Magnetization behavior depends on dipolar interactions.

Abstract

Using zero temperature Monte Carlo simulations we have studied the magnetic hysteresis in a three-dimensional Ising model with nearest neighbor exchange and dipolar interaction. The average magnetization of spins located inside a sphere on a cubic lattice is determined as a function of magnetic field varied periodically. The simulations have justified the appearance of hysteresis and allowed us to have a deeper insight into the series of metastable states developed during this process.