Magneto-optical recording medium and process for producing the s

Details Magneto-optical recording medium and process for producing the s Magneto-optical recording medium and process for producing the s

1994-04-14

1997-06-10

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694MM, 428694EC, 428694RE, 428900, 428655, 428678, 369 13, 360 59, 365122, G11B 566

Patent

active

056374119

ABSTRACT:
Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film based on rare earth metal-transition metal and an auxiliary magnetic film having spontaneous magnetization which exerts, between itself and the magneto-optical recording film, an exchange coupling force and wherein the auxiliary magnetic film is a magnetic film which readily rotates its magnetization direction toward the external magnetic field in the neighborhood of the Curie temperature of the magneto-optical recording film and has a squareness ratio of not more than 1 in the neighborhood of the Curie temperature. Also disclosed is a process for producing the magneto-optical recording medium.

REFERENCES:
patent: 4645722 (1987-02-01), Katayama et al.
patent: 4882231 (1989-11-01), Aratani et al.
patent: 4910622 (1990-03-01), Saito et al.
patent: 5018119 (1991-05-01), Aratani et al.
patent: 5168482 (1992-12-01), Aratani et al.
Kobayashi et al "Magnetization Process of ECDL films" Jap.-J. Appl. Phys.20 (11), 1981; pp. 2089-2095.

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