| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a recording medium which has fine magnetic domain structures and realizes high reproduced output and low medium noise by proposing a technique of reducing the magnetic domain size of the information recording layer of a high-density magnetic recording medium, more particularly a two-layered perpendicular magnetic recording medium having an L10 type rule alloy in the information recording layer. SOLUTION: The method of manufacturing the two-layered perpendicular magnetic recording medium having a layer consisting of the L10 type ordered alloy selected from a group A as an information recording layer comprises making the layer which has the same composition as the composition of the L10 type ordered alloy and in which the crystalline structure is an irregular structure (S11) before making the L10 type ordered alloy layer (the information recording layer) by sputtering film formation. The group A includes an FePt ordered alloy, CoPt ordered alloy, FePd ordered alloy, and their alloys. The two-layered perpendicular magnetic recording medium having the fine magnetic domain structures can be made by this manufacturing method.
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