Magnetic energy of sc ferromagnetic films with three layers as described by third order perturbed Heisenberg Hamiltonian

TL;DR

This paper analyzes the magnetic energy of three-layer simple cubic ferromagnetic films using a third order perturbed Heisenberg Hamiltonian, incorporating various magnetic parameters and visualizing results with 3-D plots.

Contribution

It introduces a comprehensive third order perturbed Heisenberg Hamiltonian model for ultra-thin ferromagnetic films with detailed parameter inclusion and visualization.

Findings

Identification of magnetic easy and hard directions.

Visualization of effects of stress, magnetic field, and exchange interaction.

Use of MATLAB for solving complex magnetic energy equations.

Abstract

The solution of third order perturbed Heisenberg Hamiltonian of simple cubic ferromagnetic ultra-thin films with three layers were found. All the magnetic energy parameters such as spin exchange interaction, magnetic dipole interaction, second order magnetic anisotropy, fourth order magnetic anisotropy, applied magnetic field, demagnetization factor and stress induced anisotropy were included in the third order perturbed Heisenberg Hamiltonian. 3-D plots of stress induced anisotropy, out of plane magnetic field, demagnetization factor and spin exchange interaction are presented in this manuscript. Magnetic easy and hard directions were determined using these 3-D plots. MATLAB program was employed to solve the equation with seven parameters.