Over write capable magnetooptical recording medium

Details Over write capable magnetooptical recording medium Over write capable magnetooptical recording medium

1990-02-20

1992-04-21

McCamish, Marion E.

Stock material or miscellaneous articles

Composite

Of inorganic material

360131, 360135, 365122, 369 13, 369 14, 428900, G11B 566

Patent

active

051067048

ABSTRACT:
An over write capable magnetooptical recording medium comprises a substrate and magnetic layers including first and second layers each having a perpendicular magnetic anisotropy. In the medium, a product of a saturated magnetic moment and a coercivity of the first layer is larger than that of the second layer, and non-magnetic element is doped in the first layer.

REFERENCES:
patent: 4799114 (1989-01-01), Tsunashima
patent: 4855975 (1989-08-01), Akasaki
patent: 4871614 (1989-10-01), Kobayashi
Swartz et al., "The Bell System Technical Journal", (Sep. 1983), vol. 62, pp. 1923-1936.

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