Magneto-optical recording medium having a plurality of ferromagn

Details Magneto-optical recording medium having a plurality of ferromagn Magneto-optical recording medium having a plurality of ferromagn

1998-04-21

2000-04-25

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

428694ML, G11B 1100

Patent

active

060552158

ABSTRACT:
A magneto-optical device including a substrate which is transparent to light in a visible spectrum region and a plurality of ferromagnetic layers arranged thereon, each ferromagnetic layer preferably having a width ranging from 5 to 100 nanometers and a thickness ranging from 0.1 to 5 microns. The ferromagnetic layers are parallel to each other and separated by a distance ranging from 0.2 to 2 microns. The ferromagnetic layers are arranged preferably on the side walls of grooves formed parallel to each other in the transparent substrate.

REFERENCES:
patent: 4686661 (1987-08-01), Isaka
patent: 5325344 (1994-06-01), Ohta et al.
patent: 5430695 (1995-07-01), Matsumoto
patent: 5862105 (1999-01-01), Nishimura
Patent Abstracts of Japan, JP 4-132029, May 6, 1992.
Patent Abstracts of Japan, JP 62-119758, June 1, 1987.
Patent Abstracts of Japan, JP 61-89605, May 7, 1986.

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