Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Patent
1998-09-15
2000-10-17
Evans, Jefferson
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
36032411, G11B 539
Patent
active
061340901
ABSTRACT:
A spin valve sensor is constructed with an electrically conductive antiferromagnetic pinning layer. A first ferromagnetic layer is placed proximate the pinning layer. A second ferromagnetic layer is included with a non-ferromagnetic electrically conductive layer placed between the first and second ferromagnetic layers. A boundary layer of electrically insulating material is placed proximate to the second layer of ferromagnetic material opposite the non-ferromagnetic electrically conductive layer. Preferred embodiments exhibit an enhanced giant magnetoresistive (GMR) effect presumably due to scattering that is more specular at the interface with the electrically insulating material.
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Mao Sining
Murdock Edward S.
Evans Jefferson
Seagate Technology LLC
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