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    • 6. 发明申请
    • PERPENDICULAR MAGNETIC RECORDING MEDIUM
    • 全能磁记录介质
    • US20090197119A1
    • 2009-08-06
    • US12137318
    • 2008-06-11
    • Sok-hyun KONGSeong-yong YOONHoo-san LEE
    • Sok-hyun KONGSeong-yong YOONHoo-san LEE
    • G11B5/62
    • G11B5/65G11B5/66G11B5/667
    • Provided is a perpendicular magnetic recording medium. The perpendicular magnetic recording medium includes: a substrate; a plurality of soft magnetic layers including a lower soft magnetic layer and an upper soft magnetic layer which are sequentially stacked on the substrate, wherein the upper soft magnetic layer has an anisotropic field greater than that of the lower soft magnetic layer; an isolating layer interposed between the lower and upper soft magnetic layers and preventing magnetic interaction between the lower and upper soft magnetic layers; an underlayer formed on the plurality of soft magnetic layers; and a recording layer formed on the underlayer and including a plurality of ferromagnetic layers each layer of which has a magnetic anisotropic energy which decreases as distance increases from the underlayer.
    • 提供了一种垂直磁记录介质。 垂直磁记录介质包括:基板; 多个软磁层,包括顺序堆叠在基板上的下软磁层和上软磁层,其中上软磁层的各向异性磁场大于下软磁层的各向异性磁场; 插入在所述下软磁层和所述软磁性层之间的隔离层,并防止所述下软磁层和所述软磁性层之间的磁相互作用; 形成在所述多个软磁性层上的底层; 以及形成在所述底层上并且包括多个铁磁层的记录层,每个铁磁层具有随距离从所述底层距离增加而减小的磁各向异性能量。