Self biasing thermal magneto-optic medium

Details Self biasing thermal magneto-optic medium Self biasing thermal magneto-optic medium

1985-09-30

1987-03-10

Moffitt, James W.

Static information storage and retrieval

Information masking

Polarization

365 28, G11C 1306

Patent

active

046495193

ABSTRACT:
A layer in a magnetic storage medium provides a biasing magnetic field for writing data. The layer exhibits a net magnetization with an orientation in a first direction when the layer is at a temperature below its compensation temperature and a net magnetization with an orientation in a second direction different from the first direction when heated as by a laser to a temperature above its compensation temperature, but below its Curie point temperature.

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patent: 3702993 (1972-11-01), Meuhaus et al.
patent: 3710352 (1973-01-01), Smith et al.
patent: 3710353 (1973-01-01), Jacobs et al.
patent: 3711841 (1973-01-01), Geusic et al.
patent: 3739394 (1973-06-01), Becker
patent: 3975710 (1976-08-01), Watanabe et al.
patent: 3982234 (1976-09-01), Voegeli

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