公开(公告)号：WO2015126326A1

公开(公告)日：2015-08-27

申请号：PCT/SG2015/000047

申请日：2015-02-16

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： ZHOU, Tiejun ,  ZHANG, Mingsheng ,  CHUNG, Hong Jing ,  WONG, Hon Seng ,  LIU, Zhejie

IPC: G11B5/187

CPC classification number: G11B5/3146 ,  G11B5/235 ,  G11B5/3116 ,  G11B2005/0024

Abstract: There is provided a magnetic head for microwave assisted magnetic recording including: a recording main pole configured to generate a recording magnetic field during operation for writing information to a recording medium, a shield arranged to form a gap to the recording main pole, wherein the recording magnetic field from the recording main pole causes a gap magnetic field in the gap between the recording main pole and the shield, and a spin torque oscillator disposed in the gap between the recording main pole and the shield, the spin torque oscillator comprising a field generation layer configured to generate a high frequency magnetic field for reducing the coercivity of a target recording area of the recording medium. In particular, the spin torque oscillator is configured such that a predetermined crystallographic axis or crystal plane orientation of the field generation layer is substantially aligned with a direction of the gap magnetic field in the field generation layer during operation. There is also provided a corresponding method of fabricating such a magnetic head.

Abstract translation: 提供了一种用于微波辅助磁记录的磁头，包括：记录主极，被配置为在将信息写入记录介质的操作期间产生记录磁场;屏蔽件，被布置成与记录主极形成间隙，其中记录 来自记录主极的磁场在记录主极和屏蔽之间的间隙中产生间隙磁场，以及设置在记录主极和屏蔽之间的间隙中的自旋扭矩振荡器，该自旋扭矩振荡器包括场产生 层，其被配置为产生用于降低记录介质的目标记录区域的矫顽力的高频磁场。 特别地，自旋转矩振荡器被配置为使得场产生层的预定晶轴或晶面取向在操作期间基本上与场产生层中的间隙磁场的方向对准。 还提供了制造这种磁头的相应方法。