MAGNETIC RECORDING HEAD AND DISK DRIVE WITH THE SAME
    1.
    发明申请
    MAGNETIC RECORDING HEAD AND DISK DRIVE WITH THE SAME 审中-公开
    磁记录头和磁盘驱动器

    公开(公告)号:US20130148242A1

    公开(公告)日:2013-06-13

    申请号:US13585316

    申请日:2012-08-14

    IPC分类号: G11B5/127

    摘要: According to one embodiment, a magnetic recording head includes a spin-torque oscillator between a main pole and a trailing shield. An oscillation layer of the spin-torque oscillator is formed by repeatedly stacking two or more laminates each including a metallic magnetic layer of a body-centered cubic crystalline metal and a metallic magnetic layer containing cobalt. The film thickness of each metallic magnetic layer is more than 0.2 nm and not more than 3 nm. The intensity of an anisotropic magnetic field is higher than a value obtained by subtracting the intensity of a gap magnetic field from the intensity of a diamagnetic field and lower than the intensity of the diamagnetic field.

    摘要翻译: 根据一个实施例,磁记录头包括在主极和后屏蔽之间的自旋扭矩振荡器。 自旋转矩振荡器的振荡层通过重复地堆叠两个或更多个层叠体形成,每个层叠体包括体心立方晶体金属的金属磁性层和含有钴的金属磁性层。 每个金属磁性层的膜厚大于0.2nm且不大于3nm。 各向异性磁场的强度高于从抗磁场的强度减去间隙磁场的强度而低于抗磁场的强度所获得的值。

    MAGNETIC RECORDING HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING APPARATUS
    2.
    发明申请
    MAGNETIC RECORDING HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING APPARATUS 审中-公开
    磁记录头,磁头组件和磁记录装置

    公开(公告)号:US20120134054A1

    公开(公告)日:2012-05-31

    申请号:US13224830

    申请日:2011-09-02

    IPC分类号: G11B5/127 G11B5/60

    摘要: According to one embodiment, a magnetic recording head includes a main magnetic pole generating a recording magnetic field in a magnetic recording medium, a return yoke paired with the main magnetic pole and a spin torque oscillator interposed between the main magnetic pole and the return yoke and including a first magnetic layer, a second magnetic layer and a third magnetic layer of Fe4N, the second magnetic layer being interposed between the first magnetic layer and the third magnetic layer, wherein the magnetic recording head is configured to allow a current for oscillation to flow in a direction from the first magnetic layer to the third magnetic layer.

    摘要翻译: 根据一个实施例,磁记录头包括在磁记录介质中产生记录磁场的主磁极,与主磁极成对的返回磁轭和插在主磁极和返回磁轭之间的自旋扭矩振荡器, 包括第一磁性层,第二磁性层和Fe4N的第三磁性层,所述第二磁性层介于所述第一磁性层和所述第三磁性层之间,其中所述磁记录头被配置为允许用于振荡的电流流动 在从第一磁性层到第三磁性层的方向上。