Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Reexamination Certificate
2005-03-31
2008-09-09
Renner, Craig A (Department: 2627)
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
Reexamination Certificate
active
07423850
ABSTRACT:
Improved sensitivity GMR sensors useful for thin film magnetic read heads are disclosed. Spin transfer induced destabilization of the magnetic free layer is suppressed through the application of Tb containing alloys in the free layer. Sense currents can be increased by a factor of five in comparison to prior art designs without an increase in spin transfer induced noise.
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Gill Hardayal Singh
Smith Neil
Hitachi Global Storage Technologies - Netherlands B.V.
Lorimer D'Arcy H.
Lorimer Labs
Renner Craig A
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