Damping control in magnetic recording systems
    1.
    发明申请
    Damping control in magnetic recording systems 有权
    磁记录系统中的阻尼控制

    公开(公告)号:US20070003792A1

    公开(公告)日:2007-01-04

    申请号:US11170035

    申请日:2005-06-29

    IPC分类号: G11B5/33 G11B5/66

    摘要: A magnetic recording system is disclosed in which the magnetization dynamics of the write head and recording medium are highly damped. The system may comprise a perpendicular recording head having a write pole, and a recording medium including a hard magnetic recording layer and a soft magnetic underlayer (SUL). The increased magnetic damping in the write pole and SUL suppresses precessional motion of the respective magnetizations, leading to a reduction in transition jitter caused by spurious head field fluctuations. The damping may be increased by providing films or multilayer structures that are doped with rare earth or transition metal elements. Exchange coupled laminates of doped and undoped layers may optimize both the effective damping and write field in the recording system.

    摘要翻译: 公开了一种磁记录系统,其中写头和记录介质的磁化动力学被高度阻尼。 该系统可以包括具有写入极的垂直记录头和包括硬磁记录层和软磁性底层(SUL)的记录介质。 写入磁极和SUL中的增加的磁阻抑制了相应磁化的进动运动,导致由杂散磁头场波动引起的转换抖动的减小。 可以通过提供掺杂有稀土或过渡金属元素的膜或多层结构来增加阻尼。 掺杂和未掺杂层的交换耦合层压板可以优化记录系统中的有效阻尼和写入场。

    Recording heads including a magnetically damped write pole and recording systems including such heads
    2.
    发明授权
    Recording heads including a magnetically damped write pole and recording systems including such heads 有权
    记录头包括磁阻写入磁极和包括这种磁头的记录系统

    公开(公告)号:US07595959B2

    公开(公告)日:2009-09-29

    申请号:US11170035

    申请日:2005-06-29

    IPC分类号: G11B5/127

    摘要: A magnetic recording system is disclosed in which the magnetization dynamics of the write head and recording medium are highly damped. The system may comprise a perpendicular recording head having a write pole, and a recording medium including a hard magnetic recording layer and a soft magnetic underlayer (SUL). The increased magnetic damping in the write pole and SUL suppresses precessional motion of the respective magnetizations, leading to a reduction in transition jitter caused by spurious head field fluctuations. The damping may be increased by providing films or multilayer structures that are doped with rare earth or transition metal elements. Exchange coupled laminates of doped and undoped layers may optimize both the effective damping and write field in the recording system.

    摘要翻译: 公开了一种磁记录系统,其中写头和记录介质的磁化动力学被高度阻尼。 该系统可以包括具有写入极的垂直记录头和包括硬磁记录层和软磁性底层(SUL)的记录介质。 写入磁极和SUL中的增加的磁阻抑制了相应磁化的进动运动,导致由杂散磁头场波动引起的转换抖动的减小。 可以通过提供掺杂有稀土或过渡金属元素的膜或多层结构来增加阻尼。 掺杂和未掺杂层的交换耦合层压板可以优化记录系统中的有效阻尼和写入场。

    Ampere wire write head with confined magnetic fields
    3.
    发明申请
    Ampere wire write head with confined magnetic fields 有权
    安培有线写磁头与限制磁场

    公开(公告)号:US20050280935A1

    公开(公告)日:2005-12-22

    申请号:US10869444

    申请日:2004-06-16

    IPC分类号: G11B5/127 G11B5/187

    CPC分类号: G11B5/315 G11B5/127 G11B5/187

    摘要: A magnetic recording head comprises a write pole having a tip adjacent to an air bearing surface of the recording head, a return pole magnetically coupled to the write pole, a conductor positioned adjacent to an edge of the write pole at the air bearing surface, a first conductive heat sink connected to the conductor, and a second conductive heat sink connected to the conductor, wherein at least a portion of each of the first and second conductive heat sinks is positioned adjacent to the air bearing surface and wherein each of the first and second conductive heat sinks includes a structure for augmenting confinement of a magnetic write field adjacent to the write pole. Magnetic storage devices that include the magnetic recording head are also included.

    摘要翻译: 磁记录头包括具有与记录头的空气轴承表面相邻的尖端的写入磁极,磁极耦合到写入极的返回磁极,与空气轴承表面上的写入极的边缘相邻定位的导体, 连接到所述导体的第一导电散热器和连接到所述导体的第二导电散热器,其中所述第一和第二导电散热器中的每一个的至少一部分被定位成邻近所述空气轴承表面,并且其中, 第二导电散热器包括用于增加与写入极相邻的磁写入场的约束的结构。 还包括包含磁记录头的磁存储装置。

    Wire and wire lead designs for a wire-assisted magnetic write device
    4.
    发明授权
    Wire and wire lead designs for a wire-assisted magnetic write device 有权
    线辅助磁性写入装置的线和导线设计

    公开(公告)号:US09159339B2

    公开(公告)日:2015-10-13

    申请号:US11925012

    申请日:2007-10-26

    摘要: A magnetic device includes a write element having a write element tip that defines a medium confronting surface. The write element is operable to generate a first field at the medium confronting surface. A conductor is proximate the write element tip and first and second conductive leads are connected to the conductor and configured to deliver a current to the conductor to generate a second field that augments the first field. First and second side elements are disposed on opposite sides of the write element tip in a cross-track direction at the medium confronting surface. At least a portion of the first conductive lead is disposed adjacent the first side element on a side opposite the medium confronting surface, and at least a portion of the second conductive lead is disposed adjacent the second side element on a side opposite the medium confronting surface.

    摘要翻译: 磁性装置包括具有限定介质面对表面的写入元件尖端的写入元件。 写入元件可操作以在介质面对面产生第一场。 导体靠近写入元件尖端,并且第一和第二导电引线连接到导体并且被配置为将电流传送到导体以产生增强第一场的第二场。 第一和第二侧面元件在介质面对面处沿着横向方向设置在写入元件尖端的相对侧上。 第一导电引线的至少一部分在与介质相对表面相对的一侧邻近第一侧元件设置,并且第二导电引线的至少一部分邻近第二侧元件设置在与介质相对表面相对的一侧 。

    Shaped Shield For A Magnetoresistive Head
    5.
    发明申请
    Shaped Shield For A Magnetoresistive Head 有权
    用于磁阻头的形状屏蔽

    公开(公告)号:US20130027813A1

    公开(公告)日:2013-01-31

    申请号:US13194804

    申请日:2011-07-29

    IPC分类号: G11B17/32 G11B5/00

    CPC分类号: G11B5/3912 G11B5/398

    摘要: A magnetic shield that is capable of enhancing magnetic reading, such as in use as a data transducing head. A magnetic stack can have a read element with an air bearing surface (ABS). The read element may be positioned adjacent a shield layer with a continuously curvilinear sidewall and a shield feature may be positioned within the areal extent of the continuously curvilinear sidewall.

    摘要翻译: 能够增强磁读取的磁屏蔽,例如用作数据传感头。 磁性堆叠可以具有带空气轴承表面(ABS)的读取元件。 读取元件可以与具有连续曲线侧壁的屏蔽层相邻定位,并且屏蔽特征可以位于连续曲线侧壁的面积范围内。

    Magnetic recording head with compact yoke
    8.
    发明申请
    Magnetic recording head with compact yoke 有权
    磁记录头带紧凑型轭

    公开(公告)号:US20060132971A1

    公开(公告)日:2006-06-22

    申请号:US11354684

    申请日:2006-02-15

    IPC分类号: G11B5/127

    摘要: A compact magnetic recording head is provided. The recording head includes a write pole and a substantially planar yoke, which is coupled to the write pole. The yoke is configured to support a substantially single vortex configuration of magnetization.

    摘要翻译: 提供了一种紧凑的磁记录头。 记录头包括写入磁极和基本上平面的轭,其耦合到写入极。 轭被构造成支撑大致单一的磁化涡旋构型。