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AssigneeMigaku Takahashi
InventorsMigaku Takahashi, David Djayaprawira, Hiroki Shoji
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A magnetic thin film with a saturation magnetic flux density of 2 T or more and a coercive force of 2 Oe or less for a magnetic pole material of a recording head. The magnetic thin film consists of an iron carbide film that includes a martensite (α′) phase as the principal phase and at least carbon and iron as constituent elements. The iron carbide film preferably consists of a single α′ phase. The iron carbide film has a body-centered tetragonal structure and a c-axis constitutes an axis of hard magnetization and, a c-plane constitutes a plane of easy magnetization. The axis of hard magnetization constitutes a direction which is generally perpendicular to the film surface, and the plane of easy magnetization constitutes a direction which is generally parallel to the film surface.
A magnetic thin film consisting of an iron carbide film, said iron carbide film comprising an α′ phase as a principal phase and at least carbon and iron as constituent elements,
A magnetic thin film consisting of an iron carbide film, said iron carbide film comprising a martinsite phase as a principal phase and at least carbon and iron as constituent elements,
A magnetic thin film consisting of an iron carbide film, said iron carbide film comprising an α′ phase as a principal phase and at least carbon and iron as constituent elements,
Dependencies are inferred from the claim text.