G - Physics – 11 – B
Patent
G - Physics
11
B
352/31, 352/57,
G11B 5/64 (2006.01) H01F 10/20 (2006.01)
Patent
CA 1315612
Abstract of the Disclosure A perpendicular magnetic storage medium comprising a substrate and a perpendicular magnetic anisotropic film formed on the substrate, characterized in that the perpendicular magnetic anisotropic film is a film of a sub-oxide of a metal having a composition described by a general formula [(Fe1-xCox)1-yMy]1-zOz (where 0.01 ? x ? 0.75, 0 ? y ? 0.30, 0.05 ? z ? 0.50 and M means at least one metal excluding Fe and Co); and has an easy magnetization axis being perpendicular to a plane thereof, and both a peak of diffracted X-ray intensity caused by oxidized Fe and a peak of diffracted X-ray intensity caused by metal state Fe and Co and metal M observed in X-ray diffraction spectrum. The perpen- dicular magnetic storage medium of the present invention can be produced easily and economically at a low sub- strate temperature, and has high wear resistance, high recording/reproducing sensitivity and high recording density.
531065
Nasu Shogo
Saiki Koji
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
Osler Hoskin & Harcourt Llp
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