MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING APPARATUS
    6.
    发明申请
    MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING APPARATUS 审中-公开
    磁记录头和磁记录装置

    公开(公告)号:US20120002331A1

    公开(公告)日:2012-01-05

    申请号:US13171206

    申请日:2011-06-28

    IPC分类号: G11B5/33

    摘要: According to one embodiment, there is provided a magnetic recording head including a main pole, and a spin torque oscillator provided adjacent to the main pole and includes an oscillation layer including a first magnetic layer and a second magnetic layer and a third magnetic layer provided closer to the second magnetic layer and configured to inject a spin into the oscillation layer. The first magnetic layer has a saturation flux density of 1 T or more and 1.9 T or less.

    摘要翻译: 根据一个实施例,提供了一种包括主极的磁记录头和与主极相邻设置的自旋扭矩振荡器,并且包括具有第一磁性层和第二磁性层的振荡层和靠近 到第二磁性层,并且被配置为向振荡层注入自旋。 第一磁性层的饱和磁通密度为1T以上且1.9T以下。

    MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY WITH THE SAME, AND DISK DRIVE
    7.
    发明申请
    MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY WITH THE SAME, AND DISK DRIVE 审中-公开
    磁头,头戴GIMBAL组装及磁盘驱动器

    公开(公告)号:US20120262820A1

    公开(公告)日:2012-10-18

    申请号:US13295866

    申请日:2011-11-14

    IPC分类号: G11B5/147 G11B17/04 G11B5/60

    CPC分类号: G11B5/1278 G11B5/3133

    摘要: According to one embodiment, a magnetic head includes a main pole configured to apply a recording magnetic field to a recording layer of a recording medium, a return pole opposed to the main pole with a write gap therebetween, and a high-frequency oscillator between respective facing surfaces of the main pole and the return pole and configured to produce a high-frequency magnetic field. At least one of the main and return poles faces the high-frequency oscillator and includes a laminated structure portion includes a magnetic layer and a nonmagnetic layer laminated to one another.

    摘要翻译: 根据一个实施例,磁头包括:主极,被配置为向记录介质的记录层施加记录磁场;与主极相对的返回极与它们之间具有写入间隔;以及高频振荡器, 主极和返回极的面对表面,并被配置为产生高频磁场。 主极和返极两者中的至少一个面向高频振荡器,并且包括层叠结构部分,其包括彼此层叠的磁性层和非磁性层。

    RECORDING HEAD AND DISK DRIVE WITH THE SAME
    8.
    发明申请
    RECORDING HEAD AND DISK DRIVE WITH THE SAME 有权
    记录头和磁盘驱动器

    公开(公告)号:US20130215532A1

    公开(公告)日:2013-08-22

    申请号:US13591012

    申请日:2012-08-21

    IPC分类号: G11B5/17

    CPC分类号: G11B5/3116 G11B2005/0002

    摘要: According to one embodiment, a main pole of a recording head includes a first magnetic pole layer and a second magnetic pole layer laminated on the trailing side of the first magnetic pole layer. The first magnetic pole layer includes a tapered portion and a first tip portion. The second magnetic pole layer includes a tapered portion and a second tip portion. A width in a track direction of the second tip portion is smaller than that of the first tip portion. The high-frequency oscillator is between the second tip portion and the trailing shield and includes a width in the track direction substantially equal to the width in the track direction of the second tip portion, and a height of the first tip portion is taller than that of the second tip portion.

    摘要翻译: 根据一个实施例,记录头的主极包括层叠在第一磁极层的后侧上的第一磁极层和第二磁极层。 第一磁极层包括锥形部分和第一末端部分。 第二磁极层包括锥形部分和第二尖端部分。 第二前端部的轨道方向的宽度小于第一前端部的宽度。 所述高频振荡器位于所述第二前端部与所述后屏蔽之间,并且包括所述轨道方向上的宽度大致等于所述第二前端部的轨道方向的宽度,并且所述第一前端部的高度高于所述第二前端部的高度。 的第二尖端部分。

    MAGNETIC RECORDING HEAD, MAGNETIC HEAD ASSEMBLY, AND MAGNETIC RECORDING APPARATUS
    10.
    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。