Magnetic recording medium having a magnetic thin film with both

Details Magnetic recording medium having a magnetic thin film with both Magnetic recording medium having a magnetic thin film with both

1990-08-08

1992-12-22

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of inorganic material

428698, 428900, G11B 500

Patent

active

051733706

ABSTRACT:
A perpendicular magnetic recording medium comprises a non-magnetic substrate having one main surface and a magnetic film of Fe-N or Fe-Co-N formed on the substrate's main surface. The magnetic film includes not only ferromagnetic phase, but also .zeta.-Fe.sub.2 N of paramagnetic phase. The magnetic film is characterized by having columnar crystal structure extending in a direction perpendicular to the substrate's main surface and perpendicular magnetic anisotropy by including .zeta.- Fe.sub.2 N.

REFERENCES:
patent: 4791021 (1988-12-01), Honda et al.
patent: 5006395 (1991-04-01), Hori et al.
patent: 5112701 (1992-05-01), Katsuragawa

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