Barium ferrite thin films prepared by alternate deposition

Abstract BaM films with various compositions were prepared by reactive RF diode sputtering method. The effects of Ba content on the c -axis orientation, temperature dependence of the magnetic properties and the microstructure of the films were investigated. Our results show that films with high Ba content tend to have c -axis normal to the film plane, and have a large value of d H C / d T due to the plate-like grains, while films which have low Ba content tend to have c -axis in the film plane, and have a small value of d H C / d T caused by the acicula-shaped grains.