Magneto-optical recording medium

Details Magneto-optical recording medium Magneto-optical recording medium

1997-09-12

1999-01-26

Zimmerman, John J.

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Web or sheet containing structurally defined element or...

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369 13, 428694RE, 428694MM, 428694EC, 428694SC, G11B 566, G11B 1100, B32B 1501

Patent

active

058636498

ABSTRACT:
In a magneto-optical recording medium including a reading-out layer, which is in an in-plane magnetization state at a room temperature and in a perpendicular magnetization state when the temperature rises, and a recording layer, which is in a perpendicular magnetization state at a room temperature to a Curie point, an intermediate layer having in-plane magnetization component and a lower Curie point than the recording medium is formed between the reading-out layer and the recording layer so as to abruptly change magnetization state of the reading-out layer. Since magnetization state of the reading-out layer is abruptly changed, recording is carried out highdensely. Moreover, since exchange-coupling between the reading-out layer and the recording layer is controlled, a recording characteristic is improved.

REFERENCES:
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patent: 5420833 (1995-05-01), Tanaka et al.
patent: 5428585 (1995-06-01), Hirokane et al.
patent: 5428586 (1995-06-01), Kobayashi et al.
patent: 5452272 (1995-09-01), Murakami et al.
German Patent Office, Office Action dated Oct. 23, 1995.
08/400,464, Hirokane et al., US Patent Application? (No Publication Date).

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