Magnetic recording medium and production thereof

Details Magnetic recording medium and production thereof Magnetic recording medium and production thereof

1988-01-19

1989-08-08

Lesmes, George F.

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428212, 428694, 428702, 428900, G11B 564

Patent

active

048551759

ABSTRACT:
A magnetic recording medium comprising a substrate and, as a recording layer, a ferromagnetic metal thin layer formed on the substrate by deposition, in which the ferromagnetic metal thin layer contains oxygen atom in such a manner that concentrations of oxygen atom in a surface layer and an interfacial layer adjacent to the substrate are higher than that in an intermediate layer between the surface and interfacial layers, which has improved coercive force and smaller magnetic domain.

REFERENCES:
patent: 4596735 (1986-06-01), Noguchi et al.

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