Magnetic recording medium

Details Magnetic recording medium Magnetic recording medium

1990-08-28

1993-11-30

Thibodeau, Paul J.

Stock material or miscellaneous articles

Composite

Of inorganic material

428611, 428668, 428670, 428900, G11B 566

Patent

active

052664180

ABSTRACT:
A magnetic recording medium having a magnetic thin film of a composition expressed as (Co.sub.a Pt.sub.b M.sub.c.sup.I M.sub.d.sup.II) Ox (where a, b, c, d are atomic percent; and x is weight percent). In this composition, a+b+c+d=100, 0<a, 0<b.ltoreq.50, 0<c.ltoreq.20, 0<d.ltoreq.20, 0<x.ltoreq.10. M.sup.I is at least one element selected from P, Si and Ge; and M.sup.II is at least one element selected from B, Ga, Al, In, Sn and Sb. Such magnetic thin film is capable of retaining a large coercive force regardless of its thickness and can be formed without the necessity of raising the base temperature during deposition of a magnetic layer.

REFERENCES:
patent: 4542062 (1985-09-01), Takada et al.
patent: 4647507 (1987-03-01), Suzuki et al.
patent: 4661418 (1987-04-01), Yanai et al.
patent: 4833044 (1989-05-01), Takahashi et al.

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