公开(公告)号：US20160343396A1

公开(公告)日：2016-11-24

申请号：US15149361

申请日：2016-05-09

Applicant: Seagate Technology LLC

Inventor： Kangkang Wang ,  Xiaobin Zhu ,  Ganping Ju ,  Kai Chieh Chang ,  Yingguo Peng ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele

IPC: G11B7/1267 ,  G11B5/024

CPC classification number: G11B7/1267 ,  G01R33/0325 ,  G11B5/024 ,  G11B5/4555 ,  G11B27/36 ,  G11B2005/0021

Abstract: An apparatus comprises a spindle to rotate a magnetic recording medium and a magnetic field generator to expose a track of the medium to a DC magnetic field. The magnetic field generator is configured to saturate the track during an erase mode and reverse the DC magnetic field impinging the track during a writing mode. A laser arrangement heats the track during the erase mode and, during the writing mode, heats the track while the track is exposed to the reversed DC magnetic field so as to write a magnetic pattern thereon. A reader reads the magnetic pattern and generates a read signal. A processor is coupled to the reader and configured to measure one or more magnetic properties of the track using the read signal. The apparatus can further comprise a Kerr sensor that generates a Kerr signal using the magnetic pattern.

Abstract translation: 一种装置包括用于旋转磁记录介质的主轴和磁场发生器，以将介质的轨道暴露于DC磁场。 磁场发生器被配置为在擦除模式期间使轨道饱和，并在写入模式期间逆转撞击轨道的直流磁场。 激光装置在擦除模式期间加热轨道，并且在写入模式期间，加热轨道，同时轨道暴露于反向的DC磁场，以便在其上写入磁性图案。 读取器读取磁性图案并产生读取信号。 处理器耦合到读取器并且被配置为使用读取信号来测量轨道的一个或多个磁性。 该装置还可以包括使用磁图案产生克尔信号的克尔传感器。

公开(公告)号：US09263076B1

公开(公告)日：2016-02-16

申请号：US13789326

申请日：2013-03-07

Applicant: Seagate Technology LLC

Inventor： Yingguo Peng ,  Kai Chieh Chang ,  Yinfeng Ding ,  Ganping Ju ,  Yukiko Kubota ,  Timothy J. Klemmer ,  Jan-Ulrich Thiele ,  Qihong Wu ,  Xiaobin Zhu

IPC: G11B5/66 ,  G11B5/738 ,  F28D20/00 ,  G11B5/84 ,  G11B5/73

CPC classification number: G11B5/7325 ,  G11B5/8404

Abstract: A magnetic stack includes a heatsink layer comprising (200) Cu or (200) CuX, a magnetic recording layer, and an interlayer disposed between the heatsink layer and the magnetic recording layer.

Abstract translation: 磁性堆叠包括包含（200）Cu或（200）CuX，磁记录层和布置在散热层和磁记录层之间的中间层的散热层。

公开(公告)号：US08988976B2

公开(公告)日：2015-03-24

申请号：US14055775

申请日：2013-10-16

Applicant: Seagate Technology LLC

Inventor： Xi Chen ,  Ganping Ju ,  Yingguo Peng ,  Timothy J. Klemmer ,  Yukiko Kubota ,  Jan-Ulrich Thiele ,  David S. Kuo ,  Kai-Chieh Chang ,  Kangkang Wang ,  Li Gao ,  Yinfeng Ding

IPC: G11B11/00 ,  G11B5/74 ,  G11B13/04 ,  G11B5/84

CPC classification number: G11B5/66 ,  G11B5/746 ,  G11B5/8404 ,  G11B5/855 ,  G11B2005/0021

Abstract: The embodiments disclose a patterned composite magnetic layer structure configured to use magnetic materials having differing temperature and magnetization characteristics in a recording device, wherein the patterned composite magnetic layer structure includes magnetic layers, at least one first magnetic material configured to be used in a particular order to reduce a recording temperature and configured to control and regulate coupling and decoupling of the magnetic layers and at least one second magnetic material with differing temperature characteristics is configured to control recording and erasing of data.

Abstract translation: 实施例公开了一种图案化复合磁性层结构，其被配置为使用在记录装置中具有不同温度和磁化特性的磁性材料，其中所述图案化的复合磁性层结构包括磁性层，至少一个第一磁性材料被配置成以特定顺序使用 以降低记录温度并且被配置为控制和调节磁性层的耦合和去耦，并且具有不同温度特性的至少一个第二磁性材料被配置为控制数据的记录和擦除。