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    • 9. 发明授权
    • Anti-ferromagnetically coupled magnetic media with combined interlayer + first magnetic layer
    • 具有组合中间层+第一磁性层的抗铁磁耦合磁介质
    • US06828036B1
    • 2004-12-07
    • US10078466
    • 2002-02-21
    • Mariana Rodica MunteanuErol Girt
    • Mariana Rodica MunteanuErol Girt
    • G11B566
    • G11B5/732G11B5/656G11B5/66G11B5/7325Y10T428/12646Y10T428/12882Y10T428/1291Y10T428/12931Y10T428/12986Y10T428/24975Y10T428/265
    • An anti-ferromagnetically coupled (“AFC”), high areal density magnetic recording medium of simplified thin film layer structure and having improved thermal stability and signal-to-medium noise ratio (“SMNR”) comprises a stack of thin film layers including, in overlying sequence from a surface of a non-magnetic substrate: (a) a non-magnetic seed layer (“SDL”); (b) at least one non-magnetic underlayer (“UL”); (c) a first ferromagnetic layer (“M1”); (d) a non-magnetic spacer layer (“SPL”); and (e) a second ferromagnetic layer serving as a magnetic recording layer (“M2”); wherein: the first ferromagnetic layer (c) serves as a combined interlayer (“IL”) and “bottom” magnetic layer (“BML”) and the non-magnetic spacer layer (d) provides RKKY-type coupling between the first ferromagnetic layer (c) and the second ferromagnetic layer (e) for stabilizing the medium via anti-ferromagnetic coupling (AFC) and improving the SMNR.
    • 具有简化薄膜层结构并具有改善的热稳定性和信噪比(SMNR))的高铁磁耦合(“AFC”),高密度磁记录介质包括一层薄膜层, (a)非磁性种子层(“SDL”);(b)至少一个非磁性底层(“UL”);(c)第一铁磁性层 层(“M1”);(d)非磁性间隔层(“SPL”); 和(e)用作磁记录层(“M2”)的第二铁磁层; 其中:第一铁磁层(c)用作组合中间层(“IL”)和“底部”磁性层(“BML”),非磁性间隔层(d)提供第一铁磁层 (c)和第二铁磁层(e),用于通过反铁磁耦合(AFC)稳定介质并改善SMNR。