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    • 4. 发明授权
    • Recording media interlayer structure
    • 记录介质层间结构
    • US08025993B2
    • 2011-09-27
    • US11709822
    • 2007-02-23
    • Abebe HailuWeilu XuXiaoguang MaChung-Hee ChangShoutao WangCharles C. Chen
    • Abebe HailuWeilu XuXiaoguang MaChung-Hee ChangShoutao WangCharles C. Chen
    • G11B5/66
    • G11B5/732G11B5/65G11B5/667G11B5/7325
    • A perpendicular magnetic recording medium comprises a layer stack formed over a surface of a non-magnetic substrate, and comprising, in overlying sequence from the surface: a magnetically soft underlayer; an interlayer structure for crystallographically orienting a layer of a perpendicular magnetic recording material formed thereon; and at least one crystallographically oriented, magnetically hard, perpendicular magnetic recording layer on the interlayer structure; wherein the interlayer structure is a triple-layer stacked structure comprising: a first interlayer of a first non-magnetic material proximal the magnetically soft underlayer and containing Ru; a second interlayer of a second non-magnetic material in overlying contact with the first interlayer and not containing Ru; and a third interlayer of a third non-magnetic material in overlying contact with the second interlayer and containing Ru.
    • 垂直磁记录介质包括形成在非磁性衬底的表面上的层叠层,并且包括从表面叠加的顺序:软磁性底层; 用于晶体取向形成在其上的垂直磁记录材料层的层间结构; 以及在层间结构上的至少一个晶体取向的磁性硬的垂直磁记录层; 其中所述层间结构是三层堆叠结构,包括:靠近所述磁软底层并包含Ru的第一非磁性材料的第一中间层; 第二非磁性材料的第二中间层与第一中间层重叠接触并且不含Ru; 以及第三非磁性材料的第三中间层,与第二夹层重叠接触并含有Ru。