Perpendicular magnetic recording medium having an interlayer of a non-magnetic nickel alloy
    3.
    发明授权
    Perpendicular magnetic recording medium having an interlayer of a non-magnetic nickel alloy 有权
    具有非磁性镍合金中间层的垂直磁记录介质

    公开(公告)号:US07632580B2

    公开(公告)日:2009-12-15

    申请号:US11146348

    申请日:2005-06-06

    CPC classification number: G11B5/667 G11B5/7325

    Abstract: Perpendicular magnetic recording media and methods of fabricating perpendicular magnetic recording media are described. The perpendicular magnetic recording medium of one embodiment includes an interlayer, an underlayer, and a perpendicular magnetic recording layer. The interlayer is comprised of a Ni-alloy having the characteristics of being nonmagnetic and having an FCC structure. The alloying element for the Ni-alloy may comprise one of V or Cr, or may comprise one of V, Cr, or W. The concentration of the alloying element is set such that the concentration of the alloying element is high enough to make the Ni-alloy non-magnetic, while low enough to maintain an FCC structure for the Ni-alloy.

    Abstract translation: 描述垂直磁记录介质和制造垂直磁记录介质的方法。 一个实施例的垂直磁记录介质包括中间层,底层和垂直磁记录层。 中间层由具有非磁性并具有FCC结构的特性的Ni合金构成。 用于Ni合金的合金元素可以包括V或Cr中的一种,或者可以包括V,Cr或W中的一种。合金元素的浓度被设定为使合金元素的浓度高到足以使 Ni合金非磁性,同时足够低以维持Ni合金的FCC结构。

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