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Resettable dual pinned spin valve sensor with thermal stability and demagnetizing fields balanced by sense current and ferromagnetic fields
Resettable dual pinned spin valve sensor with thermal stability and demagnetizing fields balanced by sense current and ferromagnetic fields
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机译:可复位的双销自旋阀传感器,具有热稳定性和通过感应电流和铁磁场平衡的消磁场
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摘要
A dual spin valve sensor is provided with a triple AP pinned layer structure on one side of a free layer and a single pinned layer on an opposite side of the free layer for increasing the flexibility in properly biasing the magnetic moment of the free layer. In one embodiment a negative ferromagnetic coupling field may be provided for still further increasing the flexibility of biasing the free layer. In another embodiment the triple AP pinned layer structure may be provided with no demagnetizing field and in still a further embodiment the triple AP pinned layer structure may be provided with a demagnetizing field as desired for still further increasing the flexibility in biasing the free layer.
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