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Characteristics of Magneto-Optical Disk with Media Sandwiched between Protective Layers

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Abstract

RE-TM amorphous ferri-magnetic film, a magneto-optical (M-O) material (1~3), is the promising erasable optical mass memory medium. Compared with other erasable optical memory materials, the film offers particularly excellent erasability, as proven by repeated recording, reading and erasing over 107 times without measurable degradation (4).

© 1985 Optical Society of America

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