Magneto-optical recording medium
AssigneeFujitsu Limited
InventorsTakuya Kamimura, Tsutomu Tanaka, Koji Matsumoto
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Abstract
The magneto-optical recording medium includes at least a reflective layer and a recording layer formed in this order on a substrate, in which record and reproduction of information are carried out by irradiating the medium with laser beam from a recording layer side. The reflective layer includes two or more thin film layers different in surface roughness, of which one near the substrate has a surface tension smaller than a surface tension of one near the recording layer. The invention is to improve a coercive force and CNR of a recording layer of a magneto-optical recording medium to realize high density recording by contriving the constitution of the recording layer.
Claims5
A magneto-optical recording medium comprising at least a reflective layer and a recording layer formed in this order on a substrate, wherein the medium is adapted to record and reproduce information by laser beam irradiated from a recording layer side, and the reflective layer comprises two or more thin film layers different in surface roughness, and of the thin film layers, one near the substrate has a surface tension smaller than a surface tension of one near the recording layer.
Dependencies are inferred from the claim text.