GMR spin valve structure using heusler alloy

Details GMR spin valve structure using heusler alloy GMR spin valve structure using heusler alloy

2005-04-05

2005-04-05

Cao, Allen (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06876522

ABSTRACT:
A giant magnetoresistive spin valve sensor is provided in which first and second ferromagnetic layers comprise a Heusler alloy. A non-ferromagnetic spacer layer is positioned between the first and second ferromagnetic layers. The non-magnetic spacer layer has an energy band which is similar to the energy bands of the Heusler alloy of the first and second ferromagnetic layers to allow a giant magnetoresistive effect to occur.

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“Observation of Giant Magnetoresistance in a Heusler Alloy Spin Valve”, by P. Johnson,IEEE, 1996, pp. 4615-4617.

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