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Scissor unidirectional biasing with hard bias stabilized soft bias
Scissor unidirectional biasing with hard bias stabilized soft bias
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机译:剪刀式单向偏置,硬偏置稳定,软偏置
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摘要
In one embodiment, an apparatus includes a scissor sensor stack, a soft bias layer positioned behind the scissor sensor stack in an element height direction, the soft bias layer including a soft magnetic material, and a hard bias layer, at least a portion thereof being positioned behind the soft bias layer in the element height direction, the hard bias layer including a hard magnetic material having an initialization magnetization that is perpendicular to a media-facing surface of the apparatus to provide unidirectional anisotropy to the soft bias layer, wherein the scissor sensor stack includes a first free layer, a second free layer positioned above the first free layer, and a barrier layer positioned between the first free layer and the second free layer. Other apparatuses and methods for forming such apparatuses are described in more embodiments.
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