Patent ID: 6773834
Filing Date: 2004-08-10
Classification: C23C,G11B,Y10S,Y10T

Abstract:
A magnetic recording medium comprising:a substrate; a magnetic recording layer on the substrate and comprising an antiferromagnetically-coupled (AFC) layer, a ferromagnetic layer and a nonferromagnetic spacer layer separating the AFC layer and the ferromagnetic layer, the AFC layer comprising a first ferromagnetic film, a second ferromagnetic film and an antiferromagnetically coupling film located between the first and second ferromagnetic films and having a thickness and composition to provide antiferromagnetic exchange coupling of the first and second ferromagnetic films, the nonferromagnetic spacer layer being located between the second ferromagnetic film of the AFC layer and the ferromagnetic layer and having a thickness and composition wherein the ferromagnetic layer and the second ferromagnetic film of the AFC layer are not exchange coupled.