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    Magnetic head assembly
    31.
    发明申请
    Magnetic head assembly 有权
    磁头组件

    公开(公告)号：US20090316303A1

    公开(公告)日：2009-12-24

    申请号：US12382940

    申请日：2009-03-26

    申请人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

    发明人： Kenichiro Yamada ,  Hitoshi Iwasaki ,  Masayuki Takagishi ,  Tomomi Funayama

    IPC分类号： G11B5/60

    CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3146 ,  G11B2005/0005 ,  G11B2005/0024 ,  H03B15/006

    摘要： A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting of a Fe—Co—Al alloy, a Fe—Co—Si alloy, a Fe—Co—Ge alloy, a Fe—Co—Mn alloy a Fe—Co—Cr alloy and a Fe—Co—B alloy, a second magnetic layer, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The main magnetic pole is placed together with the spin torque oscillator. The magnetic recording head is mounted on the head slider. The head slider is mounted on one end of the suspension. The actuator arm is connected to other end of the suspension.

    摘要翻译： 磁头组件包括：磁记录头，磁头滑块，悬架和致动器臂。 磁记录头包括自旋扭矩振荡器和主磁极。 自旋转矩振荡器包括：第一磁性层，其包括选自由Fe-Co-Al合金，Fe-Co-Si合金，Fe-Co-Ge合金，Fe-Co-Mn 合金Fe-Co-Cr合金和Fe-Co-B合金，第二磁性层和设置在第一磁性层和第二磁性层之间的中间层。 主磁极与自旋扭矩振荡器一起放置。 磁记录头安装在磁头滑块上。 磁头滑块安装在悬架的一端。 执行器臂连接到悬架的另一端。

    Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium
    37.
    发明授权
    Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording medium 有权
    利用与磁记录介质中的天线层相互作用的自旋扭矩振荡器的磁记录装置

    公开(公告)号：US08120875B2

    公开(公告)日：2012-02-21

    申请号：US12512237

    申请日：2009-07-30

    申请人： Masayuki Takagishi ,  Kenichiro Yamada ,  Hitoshi Iwasaki ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

    发明人： Masayuki Takagishi ,  Kenichiro Yamada ,  Hitoshi Iwasaki ,  Tomomi Funayama ,  Masahiro Takashita ,  Mariko Shimizu

    IPC分类号： G11B5/127

    CPC分类号： G11B5/314 ,  G11B2005/001 ,  G11B2005/0024

    摘要： A magnetic recording apparatus includes a magnetic recording head having a magnetic pole and a spin torque oscillator, the spin torque oscillator being placed adjacent to the magnetic pole and includes at least two magnetic layers of a first magnetic layer and a second magnetic layer, and a magnetic recording medium includes two magnetic layers of a recording layer and an antenna layer, the recording layer including a hard magnetic material, such that the antenna layer is formed closer to the magnetic recording head than the recording layer, in which the antenna layer has a resonance frequency fa lower than a resonance frequency fr of the recording layer, greater than a resonance frequency of the second magnetic layer, and the recording layer and the antenna layer are ferromagnetically coupled to each other.

    摘要翻译： 磁记录装置包括具有磁极和自旋扭矩振荡器的磁记录头，该旋转扭矩振荡器被放置成与磁极相邻，并且包括至少两个第一磁性层和第二磁性层的磁性层，以及 磁记录介质包括记录层和天线层的两个磁性层，记录层包括硬磁性材料，使得天线层比记录层更靠近磁记录头，其中天线层具有 谐振频率fa低于记录层的谐振频率fr，大于第二磁性层的共振频率，并且记录层和天线层彼此铁磁耦合。