发明名称 |
Spin valve sensor with a biasing layer ecerting a demagnetizing field on a free layer structure |
摘要 |
A spin valve sensor is provided with a biasing layer which produces a demagnetizing field which supports a demagnetizing field from a pinned layer structure in counterbalancing a sense current field on the free layer structure. The biasing layer has a high resistance so that a sense current is not excessively shunted therethrough and is a specular reflector so as to reflect conduction electrons to increase a magnetoresistive coefficient dr/R of the sensor. In the preferred embodiment the pinned layer structure is an antiparallel (AP) pinned layer structure.
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申请公布号 |
US6674616(B2) |
申请公布日期 |
2004.01.06 |
申请号 |
US20010832248 |
申请日期 |
2001.04.09 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
GILL HARDAYAL SINGH |
分类号 |
G11B5/012;G11B5/39;(IPC1-7):G11B5/39 |
主分类号 |
G11B5/012 |
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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