Multi-layered ferromagnetic film and method of manufacturing the same.

摘要

The film is composed of an alternating laminate of unit iron layers and unit layers of ferromagnetic iron compound such as Fe₃Aℓ, Fe₃Si, Fe₃Ge and Fe₃Ga. The thickness of the both unit layers is less than 70 Å. The film has a hing saturation magnetization more than 230 emu/g and a high thermal stability so that the film is particularly applicable to a magnetic head core.