Magnetic recording medium
AssigneeXerox Corporation
InventorsTu Chen, George B. Charlan
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Abstract
A magnetic recording medium comprising a thin film of magnetic material disposed upon a non-magnetic substrate wherein the magnetic material is an alloy of cobalt with a second constituent which may be rhenium, ruthenium or osmium. The magnetic material will have a coercive force of up to 800 Oe and a squareness ratio of up to 98%.
Claims6
A magnetic recording medium of relatively magnetically isotropic thin metallic film on a support, said film comprising a metallic alloy of cobalt and either rhenium, ruthenium or osmium or an admixture thereof.
In a magnetic recording medium comprising a relatively magnetically isotropic thin film on a nonmagnetic support and providing a squareness ratio between 0.8 and 1 and a coercive field between 200 to 800 Oe relatively independent of film thickness, said film comprising a magnetic alloy of cobalt and an element selected from the group consisting of rhenium, ruthenium and osmium.
Dependencies are inferred from the claim text.