Magneto-optical recording medium with exchange-coupled reproduci

Details Magneto-optical recording medium with exchange-coupled reproduci Magneto-optical recording medium with exchange-coupled reproduci

1991-09-17

1993-03-09

Nguyen, Hoa T.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

G11B 1304

Patent

active

051930854

ABSTRACT:
In a magnetooptical computer disk having one or more optically transparent dimensionally stable substrates and one or more double layer systems consisting of two exchange-coupled magnetic layers which consist of alloys of rare earth metals with transition metals and have vertical magnetic anisotropy, the first magnetic layer adjacent to the substrate has a composition corresponding to the formula I

REFERENCES:
patent: 4628485 (1986-12-01), Tanaka et al.
patent: 4645722 (1987-02-01), Katayama et al.
patent: 4693943 (1987-09-01), Kishi et al.
patent: 4753853 (1988-06-01), Sato et al.
patent: 5030512 (1991-07-01), Kato et al.

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