发明名称 |
Magnetic sensor having a high spin polarization reference layer |
摘要 |
A magnetic sensor configured to reside in proximity to a recording medium during use having a high spin polarization reference layer stack above AFM layers. The reference layer stack comprises a first boron-free ferromagnetic layer above the AFM coupling layer; a magnetic coupling layer on and in contact with the first boron-free ferromagnetic layer; a second ferromagnetic layer comprising boron deposited on and contact with the magnetic coupling layer; and a boron-free third ferromagnetic layer on and in contact the second ferromagnetic layer. A barrier layer is deposited on and in contact with the boron-free third ferromagnetic layer. In one aspect of the invention, the magnetic coupling layer may comprise at least one of Ta, Ti, or Hf. A process for providing the magnetic sensor is also provided. |
申请公布号 |
US8582253(B1) |
申请公布日期 |
2013.11.12 |
申请号 |
US201213488219 |
申请日期 |
2012.06.04 |
申请人 |
ZHENG YUANKAI;LENG QUNWEN;PAKALA MAHENDRA;DIAO ZHITAO;KAISER CHRISTIAN;YANG CHENG-HAN;WESTERN DIGITAL (FREMONT), LLC |
发明人 |
ZHENG YUANKAI;LENG QUNWEN;PAKALA MAHENDRA;DIAO ZHITAO;KAISER CHRISTIAN;YANG CHENG-HAN |
分类号 |
G11B5/39 |
主分类号 |
G11B5/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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