Magneto-optical recording method and medium comprising three lay

Details Magneto-optical recording method and medium comprising three lay Magneto-optical recording method and medium comprising three lay

1997-12-02

2000-09-26

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

G11B 1100

Patent

active

06125083&

ABSTRACT:
In a magneto-optical recording medium, a first magnetic layer for participating in reproduction of information is laminated on a substrate. A second magnetic layer for storing information is laminated on the first magnetic layer. A third magnetic layer having a Curie temperature lower than those of the first and second magnetic layers is disposed between the first magnetic layer and the second magnetic layer. A magnetization of a region of the first magnetic layer adjacent to a region of the third magnetic layer the temperature of which is above the Curie temperature of the third magnetic layer is aligned with the direction of magnetization of a region around the region of the first magnetic layer.

REFERENCES:
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patent: 5241520 (1993-08-01), Ohta et al.
patent: 5367507 (1994-11-01), Sato et al.
Kaneko, M., et al., "IRISTER--Magneto-Optical Disk for Magnetically Induced SuperResolution," Proc. IEEE, vol. 32, No. 4, Apr. 1994, pp. 544-552.
Kaneko, M., et al., "Multilayered Magneto-Optical Disks for Magnetically Induced Superresolution," Jpn. J. Appl. Phys., Part 1(31) No. 2, Feb. 22, pp. 568-575.
Patent Abstract of Japan, vol. 17, No. 36, published Jan. 22, 1993, English Abstract of Japanese Patent No. 4-255946.

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