| 摘要 |
PURPOSE:To obtain a magneto-optical recording medium which has high recording sensitivity, less noises and excellent stability with lapse of time by constituting an intermediate protective layer and protective layer of specific materials. CONSTITUTION:The intermediate protective layer of the magneto-optical recording medium constituted by providing the intermediate protective layer, a magneto-optical recording layer and the protective layer successively on a substrate is a layer consisting of at least one compd. selected from a group consisting of aluminum oxide, tantalum oxide and nitride, and the protective layer is a layer consisting of SiO. The oxides of the aluminum and tantalum and the nitride are dense to prevent the infiltration of moisture and oxygen from the outside, is highly resistant to corrosion, is small in reactivity with the magneto-optical recording layer and has excellent adhesiveness to the resin in the case of using a resin substrate as the substrate. The content of 0 in the compsn. of SiO is particularly preferably about 0.5-1.6. The corrosion resistance of the recording is thereby sufficiently improved and the recording medium having the good durability and recording sensitivity and excellent productivity is obtd.
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