COMPOSITE PERPENDICULAR MEDIA WITH GRADED ANISOTROPY LAYERS AND EXCHANGE BREAK LAYERS
    4.
    发明申请
    COMPOSITE PERPENDICULAR MEDIA WITH GRADED ANISOTROPY LAYERS AND EXCHANGE BREAK LAYERS 审中-公开
    具有分级的各向异性层和交换层的复合材料

    公开(公告)号:US20110003175A1

    公开(公告)日:2011-01-06

    申请号:US12684070

    申请日:2010-01-07

    IPC分类号: G11B5/33 G11B5/84

    CPC分类号: G11B5/66 G11B5/667

    摘要: A perpendicular magnetic recording layer may include a hard granular layer, an exchange break layer formed on the hard granular layer, and a soft granular layer formed on the exchange break layer. In some embodiments, the exchange break layer may consist essentially of ruthenium. In some embodiments, the perpendicular magnetic recording layer may include n magnetic layers and n−1 exchange break layers, where n is greater than or equal to three, and where the n−1 exchange break layers alternate with the n magnetic layers in the magnetic recording layer.

    摘要翻译: 垂直磁记录层可以包括硬颗粒层,形成在硬颗粒层上的交换破坏层和形成在交换断层上的软颗粒层。 在一些实施方案中,交换断裂层可以基本上由钌组成。 在一些实施例中,垂直磁记录层可以包括n个磁性层和n-1个交换断裂层,其中n大于或等于3个,并且其中n-1个交换断裂层与磁性层中的n个磁性层交替 记录层。

    Perpendicular magnetic recording media with thin soft magnetic underlayers and recording systems comprising same
    6.
    发明申请
    Perpendicular magnetic recording media with thin soft magnetic underlayers and recording systems comprising same 有权
    具有薄软磁底层的垂直磁记录介质和包含该磁性底层的记录系统

    公开(公告)号:US20080131734A1

    公开(公告)日:2008-06-05

    申请号:US11606998

    申请日:2006-12-01

    摘要: A perpendicular magnetic recording medium comprises a non-magnetic substrate having a surface; and a plurality of overlying thin film layers forming a layer stack on the substrate surface, the layer stack including a magnetically hard perpendicular magnetic recording layer structure and an underlying soft magnetic underlayer (SUL), the SUL having a thickness of up to about 100 Å. Also disclosed is a data/information recording, storage, and retrieval system comprising the perpendicular magnetic recording medium and a single-pole magnetic transducer head including main and auxiliary poles positioned in spaced adjacency to an upper surface of the layer stack, the single-pole transducer head comprising a front shield adjacent the main pole.

    摘要翻译: 垂直磁记录介质包括具有表面的非磁性基板; 以及在衬底表面上形成层堆叠的多个上覆薄膜层,所述层堆叠包括磁性硬垂直磁记录层结构和下面的软磁性底层(SUL),所述SUL具有高达约100埃的厚度 。 还公开了一种包括垂直磁记录介质和单极磁换能器头的数据/信息记录,存储和检索系统,其包括与层堆叠的上表面间隔开的主副磁极,单极 换能器头包括邻近主极的前屏蔽。

    COMPOSITE SOFT UNDERLAYER INCLUDING NEGATIVE ANISOTROPY MATERIAL
    9.
    发明申请
    COMPOSITE SOFT UNDERLAYER INCLUDING NEGATIVE ANISOTROPY MATERIAL 有权
    复合软底层,包括负面的各向异性材料

    公开(公告)号:US20120052327A1

    公开(公告)日:2012-03-01

    申请号:US12872865

    申请日:2010-08-31

    IPC分类号: G11B5/62

    CPC分类号: G11B5/667

    摘要: An apparatus may include a composite soft underlayer and a perpendicular magnetic recording layer overlying the composite soft underlayer. The composite soft underlayer may include a growth template layer, a negative magnetic anisotropy layer overlying the growth template layer, and a magnetically soft layer overlying the negative magnetic anisotropy layer. In some embodiments, the negative magnetic anisotropy layer includes a plurality of grains, and substantially all the grains have negative magnetic anisotropy along an axis substantially perpendicular to a major plane of the composite soft underlayer. In some embodiments, the negative magnetic anisotropy layer includes a thickness of less than or equal to about 3 nm

    摘要翻译: 装置可以包括复合软底层和覆盖复合软底层的垂直磁记录层。 复合软底层可以包括生长模板层,覆盖生长模板层的负磁各向异性层和覆盖负磁各向异性层的磁软层。 在一些实施例中,负磁各向异性层包括多个晶粒,并且基本上所有的晶粒沿着基本上垂直于复合软底层的主平面的轴线具有负的磁各向异性。 在一些实施例中,负磁各向异性层包括小于或等于约3nm的厚度

    Patterned magnetic media via thermally induced phase transition
    10.
    发明授权
    Patterned magnetic media via thermally induced phase transition 失效
    图案磁介质通过热诱导相变

    公开(公告)号:US06749904B1

    公开(公告)日:2004-06-15

    申请号:US10138265

    申请日:2002-05-06

    IPC分类号: B05D300

    摘要: High areal storage density, patterned magnetic media comprising a patterned plurality of at least partially crystalline, ferromagnetic particles or grains are provided by means of a simple, economical process wherein a non-magnetic substrate is provided with a layer of an amorphous, paramagnetic or anti-paramagnetic material comprising at least one component, e.g., a metal element, which is ferromagnetic when in at least partially crystalline form, and at least partially crystallizing the at least one component at selected areas of the amorphous layer to form a spaced-apart pattern of at least partially crystallized, ferromagnetic particles or grains of the at least one component, the particles or grains being spaced apart and surrounded by a matrix of the amorphous material. Embodiments include utilizing a focussed or scanned laser source and an amorphous Ni—P layer for forming ferromagnetic Ni particles or grains.

    摘要翻译: 通过简单,经济的方法提供包括图案化的多个至少部分结晶的铁磁性颗粒或颗粒的图案化磁性介质,其中非磁性衬底具有无定形,顺磁性或抗反射层 对抗磁性材料,其包含至少一种组分,例如金属元素,其在至少部分结晶形式时是铁磁性的,并且至少部分地使非晶层的选定区域处的至少一种组分结晶,以形成间隔开的图案 的至少部分结晶的铁磁性颗粒或至少一种组分的晶粒​​,所述颗粒或颗粒间隔开并被无定形材料的基质包围。 实施例包括利用聚焦或扫描的激光源和非晶Ni-P层来形成铁磁性Ni颗粒或颗粒。