Technique for determining magnetization and field distributions in magnetic films

A method for computing the equilibrium magnetization and internal field distributions for magnetic thin films with non-planar surfaces is presented. The iterative calculation is based on a 3-dimensional model in which the surface topology of the film is assumed to be periodic along one of the film-plane coordinates and uniform along the other. Each period of the film structure is subdivided into regions in which the magnetization and internal field are assumed to be uniform. The magnitude of the magnetization is taken as M0throughout the film. A procedure is then established for computing the equilibrium direction of the magnetization and the magnitude and direction of the internal field within these regions. The results of computer calculations for several simple configurations are presented.