Hysteresis Behavior of Anisotropic Heisenberg Model in Thin Film Geometry

The effect of the anisotropy in the exchange interaction and film thickness on the hysteresis behavior of the anisotropic Heisenberg thin film has been investigated with effective field formulation in a two spin cluster using the decoupling approximation. The behaviors of the hysteresis loop area, coersive field and remanent magnetization with the film thickness and anisotropy in the exchange interaction have been obtained.