Patent ID: 6893746
Filing Date: 2005-05-17
Classification: G11B

Abstract:
1. A magnetic recording medium for reproducing information thereon with a magnetic head, the magnetic recording medium comprising: a substrate; an amorphous magnetic film which has an easy axis of magnetization in a direction perpendicular to a substrate surface and in which information is recorded; and a ferromagnetic film; wherein: the ferromagnetic film has an easy axis of magnetization in the direction perpendicular to the substrate surface, the ferromagnetic film has saturation magnetization larger than saturation magnetization of the amorphous magnetic film, the ferromagnetic film contacts with the amorphous magnetic film, and the ferromagnetic film is formed on a side closer to the magnetic head than the amorphous magnetic film; and wherein the amorphous magnetic film has a single layer film or an artificial lattice film, and is composed of an alloy comprising an iron family element and a rare earth element, the iron family element is at least one element selected from the group consisting of Fe, Co, and Ni, and the rare earth element is at least one element selected from the group consisting of Th, Gd, Dy, and Ho.