G - Physics – 11 – B
Patent
G - Physics
11
B
352/33.3
G11B 11/10 (2006.01) C22C 19/00 (2006.01) C22C 19/05 (2006.01) G11B 5/66 (2006.01) G11B 7/24 (2006.01) H01F 10/16 (2006.01)
Patent
CA 1310416
MAGNETOOPTICAL RECORDING MEDIUM 72932-21 Abstract of the Disclosure A magnetooptical recording medium comprises a substrate, a magnetooptical recording film (I) and a reflection film (II), said films being laminated on said substrate in this order. The magnetooptical recording film (I) is a thin film of an amorphous alloy comprising (i) at least one 3d transition metal, (ii) from 5 to 30 atom % of at least one corrosion resistant metal and (iii) at least one rare earth element, and having an easy axis of magnetization perpendicular to the film plane, and the reflection film (ii) comprises a metal or alloy having a conductivity of not higher than 2 J/cm.sec.K. The recording medium described herein has excellent resistance to oxidation in addition to excellent magnetooptical recording characteristics.
580362
Haruta Koichi
Hashimoto Hidehiko
Igarashi Koichi
Kajiura Hirokazu
Mizumoto Kunihiko
Mitsui Chemicals Incorporated
Smart & Biggar
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