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    HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers
    1.
    发明授权
    HAMR media structure with intermediate layer underlying a magnetic recording layer having multiple sublayers 有权
    具有中间层的HAMR介质结构位于具有多个子层的磁记录层之下

    公开(公告)号：US09406329B1

    公开(公告)日：2016-08-02

    申请号：US14954397

    申请日：2015-11-30

    申请人： WD Media, LLC

    发明人： Hoan Cong Ho ,  Hua Yuan ,  Tomoko Seki ,  Antony Ajan ,  Paul C. Dorsey

    IPC分类号： G11B11/00 ,  G11B5/738 ,  G11B5/66 ,  G11B5/73 ,  G11B5/84 ,  G11B5/00

    CPC分类号： G11B5/7325 ,  G11B5/314 ,  G11B5/6088 ,  G11B5/65 ,  G11B5/66 ,  G11B2005/0021

    摘要： Segregants for magnetic recording layers and materials for intermediate layers underlying the magnetic recording layers are provided for improved heat assisted magnetic recording (HAMR) media. One such HAMR medium includes a substrate, a heat sink layer on the substrate, an underlayer on the heat sink layer, an intermediate layer of TiON, VON, CrON, TiOC, VOC, TiONC, and/or combinations thereof, on the underlayer, and a magnetic recording layer of FePt on the intermediate layer. The magnetic recording layer further includes three sublayers, each having a different segregant. The segregant of the first magnetic recording sublayer on the intermediate layer includes AgBN, AgCN, AgBNC, AgB2O3, AgMoO3, AgV2O5, B2O3, MoO3, V2O5, and/or combinations thereof.

    摘要翻译： 提供用于磁记录层的分离器和用于磁记录层下面的中间层的材料用于改进的热辅助磁记录（HAMR）介质。 一种这样的HAMR介质包括衬底，衬底上的散热层，散热层上的底层，TiON，VON，CrON，TiOC，VOC，TiONC和/或其组合的中间层， 和中间层上的FePt磁记录层。 磁记录层还包括三个子层，每个子层具有不同的分离。 中间层上的第一磁记录子层的分离体包括AgBN，AgCN，AgBNC，AgB 2 O 3，AgMoO 3，AgV 2 O 5，B 2 O 3，MoO 3，V 2 O 5和/或其组合。

    Heat assisted magnetic recording (HAMR) media with Curie temperature reduction layer
    5.
    发明授权
    Heat assisted magnetic recording (HAMR) media with Curie temperature reduction layer 有权

    公开(公告)号：US11074934B1

    公开(公告)日：2021-07-27

    申请号：US14865501

    申请日：2015-09-25

    申请人： WD Media, LLC

    发明人： Hua Yuan ,  Antony Ajan ,  Oleg Krupin ,  B. Ramamurthy Acharya

    IPC分类号： G11B5/66 ,  H01F41/22 ,  G11B5/65 ,  G11B5/73 ,  G11B5/00

    摘要： HAMR media with a magnetic recording layer having a reduced Curie temperature and methods of fabricating the HAMR media are provided. One such HAMR medium includes a substrate, a heat sink layer on the substrate, an interlayer on the heat sink layer, and a multi-layer magnetic recording layer on the interlayer. In such case, the multi-layer magnetic recording layer includes a first magnetic recording layer including an alloy selected from FePtX and CoPtX, where X is a material selected from the group consisting of Cu, Ni, and combinations thereof, a second magnetic recording layer on the first magnetic recording layer and having at least one material different from the materials of the first magnetic recording layer, and a third magnetic recording layer on the second magnetic recording layer and having at least one material different from the materials of the first magnetic recording layer.

    Systems and methods for providing heat assisted magnetic recording media configured to couple energy from a near field transducer
    8.
    发明授权
    Systems and methods for providing heat assisted magnetic recording media configured to couple energy from a near field transducer 有权
    用于提供被配置为耦合来自近场传感器的能量的热辅助磁记录介质的系统和方法

    公开(公告)号：US08787130B1

    公开(公告)日：2014-07-22

    申请号：US13931812

    申请日：2013-06-29

    申请人： WD Media, LLC

    发明人： Hua Yuan ,  Bogdan F. Valcu ,  Antony Ajan ,  B. Ramamurthy Acharya ,  Alexander S. Chernyshov ,  Paul C. Dorsey

    IPC分类号： G11B11/00 ,  G11B5/82 ,  G11B5/66

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B5/65 ,  G11B5/72 ,  G11B2005/0021

    摘要： Systems and methods for providing heat assisted magnetic recording (HAMR) media configured to couple energy from a near field transducer (NFT) are provided. One such method includes providing a magnetic recording layer including an L10 ordered FePt or an L10 ordered CoPt, selecting a plurality of preselected parameters for a coupling layer, the preselected parameters including a material, a preselected deposition temperature, and a preselected thickness, and depositing the coupling layer directly on the magnetic recording layer using the preselected parameters such that the coupling layer has an extinction coefficient greater than 0.1.

    摘要翻译： 提供了用于提供配置成耦合来自近场传感器（NFT）的能量的热辅助磁记录（HAMR）介质的系统和方法。 一种这样的方法包括提供包括L10有序FePt或L10有序CoPt的磁记录层，为耦合层选择多个预选参数，预选参数包括材料，预选沉积温度和预选厚度，以及沉积 使用预选参数直接在磁记录层上的耦合层，使得耦合层具有大于0.1的消光系数。