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GMR read head having a pinned layer with an active portion oxidized to reduce the magnetic moment thereof
GMR read head having a pinned layer with an active portion oxidized to reduce the magnetic moment thereof
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机译:具有固定层的GMR读头,其有源部分被氧化以减小其磁矩
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摘要
A magnetic head having a sensor with a free layer, a spacer layer coupled to the free layer, and a pinned layer coupled to the spacer layer. Each layer has an active portion defined between its end portions. Leads are coupled to the sensor, with each lead overlapping the end portions of the layers. The pinned layer is operative to substantially pin magnetic moments of the end portions of the free layer. The magnetic moment of the active portion of the pinned layer is oxidized to reduce its magnetic moment, allowing the magnetic moment of the active portion of the free layer to spin freely.
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