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    • 6. 发明申请
    • BIT PATTERNED MEDIUM
    • 位图形图
    • US20090061259A1
    • 2009-03-05
    • US12039112
    • 2008-02-28
    • Hoo-san LEESung-chul LEEHoon-sang OH
    • Hoo-san LEESung-chul LEEHoon-sang OH
    • G11B5/66G11B5/65
    • G11B5/66G11B5/855
    • A bit patterned medium in which an exchange coupling layer induces exchange coupling between adjacent bits in order to reduce a switching field difference resulting from different magnetization directions of bits. The exchange coupling layer is disposed either over or under a recording layer having a plurality of bits. The exchange coupling layer induces exchange coupling between a bit which is to be recorded and an adjacent bit and reduces a switching field difference resulting from a difference between the magnetization direction of the bit to be recorded and the magnetization direction of neighboring bits due to an exchange coupling force generated during the exchange coupling.
    • 一种位图形介质,其中交换耦合层引起相邻位之间的交换耦合,以便减少由不同磁化方向引起的开关场差。 交换耦合层设置在具有多个位的记录层之上或之下。 交换耦合层引起要被记录的位和相邻位之间的交换耦合,并减少由于要记录的位的磁化方向与由于交换而产生的相邻位的磁化方向之间的差导致的开关场差 在交换耦合期间产生的耦合力。
    • 9. 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。