CPP GMR using Fe based synthetic free layer

Details CPP GMR using Fe based synthetic free layer CPP GMR using Fe based synthetic free layer

2008-04-01

2008-04-01

Klimowicz, William J (Department: 2627)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07352541

ABSTRACT:
A current perpendicular to plane (CPP) giant magnetoresistive (GMR) sensor having an antiparallel coupled free layer including a first magnetic layer of Fe and a second magnetic layer of FeXN, where X can be Al or Ta. The first and second magnetic layers of the free layer are separated from one another by a Cr coupling layer. The sensor may also include an antiparallel coupling layer including Fe magnetic layers separated by a Cr coupling layer. The pinned and free layers may be separated by a Cr spacer layer.

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