Thickness dependent Curie temperatures of ferromagnetic Heisenberg films

TL;DR

This paper presents a method to calculate the magnetic properties, including Curie temperatures, of ferromagnetic Heisenberg films with anisotropy, applicable to various thicknesses and spins, enabling study of the 2D-3D magnetic transition.

Contribution

It introduces a general procedure for computing magnetic properties of ferromagnetic films with anisotropy for arbitrary spins and thicknesses, focusing on layer-dependent magnetizations and Curie temperatures.

Findings

Layer-dependent magnetizations for different film thicknesses.

Curie temperatures vary with film thickness and spin.

Method applicable to 2D-3D magnetic transition studies.

Abstract

We develop a procedure for calculating the magnetic properties of a ferromagnetic Heisenberg film with single-ion anisotropy which is valid for arbitrary spin and film thickness. Applied to sc(100) and fcc(100) films with spin S=7/2 the theory yields the layer dependent magnetizations and Curie temperatures of films of various thicknesses making it possible to investigate magnetic properties of films at the interesting 2D-3D transition.