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    • 3. 发明授权
    • Method and system for providing a magnetic transducer having a high moment bilayer magnetic seed layer for a trailing shield
    • 用于提供具有用于后盾的高力矩双层磁性种子层的磁换能器的方法和系统
    • US08582241B1
    • 2013-11-12
    • US13479095
    • 2012-05-23
    • Chengtao R. YuDehua HanYing HongFeng LiuBo ZhangTao Pan
    • Chengtao R. YuDehua HanYing HongFeng LiuBo ZhangTao Pan
    • G11B5/147
    • G11B5/1278G11B5/3116G11B5/315
    • A method and system for providing a magnetic read transducer is described. The magnetic recording transducer includes a write pole, a nonmagnetic gap, a magnetic seed layer, a trailing shield and coil(s) that energize the write pole. The write pole is configured to write to a media. The nonmagnetic gap is between the write pole and the magnetic seed layer. The magnetic seed layer includes a high moment layer and a magnetic buffer layer. The high moment layer is between the nonmagnetic gap and the magnetic buffer layer. The high moment layer has a saturation magnetization greater than 2.3 T and a first corrosion potential. The magnetic buffer layer has a second corrosion potential less than the first corrosion potential. The magnetic seed layer is between the trailing shield and the nonmagnetic gap layer. The magnetic buffer layer is between the trailing shield and the high moment layer.
    • 描述了一种用于提供磁读取换能器的方法和系统。 磁记录换能器包括对写磁极通电的写磁极,非磁性间隙,磁性种子层,后屏蔽和线圈。 写极被配置为写入介质。 非磁性间隙位于写极和磁性种子层之间。 磁性种子层包括高力矩层和磁性缓冲层。 高磁矩层位于非磁性间隙和磁性缓冲层之间。 高力矩层具有大于2.3T的饱和磁化强度和第一腐蚀电位。 磁缓冲层具有小于第一腐蚀电位的第二腐蚀电位。 磁性种子层位于尾部屏蔽和非磁性间隙层之间。 磁缓冲层位于后盾和高力矩层之间。