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PERPENDICULAR MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING PERPENDICULAR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING/REPRODUCING APPARATUS
PERPENDICULAR MAGNETIC RECORDING MEDIUM, PROCESS FOR PRODUCING PERPENDICULAR MAGNETIC RECORDING MEDIUM, AND MAGNETIC RECORDING/REPRODUCING APPARATUS
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机译:垂直磁记录介质,生产垂直磁记录介质的过程以及磁记录/再现设备
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摘要
A perpendicular magnetic recording medium is provided, which has a soft magnetic layer, a seed layer, a first intermediate layer, a second intermediate layer and a perpendicular magnetic recording layer, formed in this order on a non-magnetic substrate, and is characterized in that the seed layer is comprised of a (002) crystal plane-orientated hcp structure, the first intermediate layer is comprised of a (110) crystal plane-orientated bcc structure and the second intermediate layer is comprised of a (002) crystal plane-orientated hcp structure. The (110) crystal plane-orientated bcc structure comprises at least 60 atomic % of Cr. The magnetic recording medium has fine and well discrete magnetic crystal grains with extremely small size and exhibits good perpendicular orientation in the perpendicular magnetic recording layer, and thus, the medium is capable of recording and reproducing information with high density.
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