Exchange coupled film having magnetic layer with non-uniform...

Details Exchange coupled film having magnetic layer with non-uniform... Exchange coupled film having magnetic layer with non-uniform...

2005-05-10

2005-05-10

Castro C, Angel (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06891703

ABSTRACT:
A first magnetic sublayer includes a region containing X (e.g., Cr), which extends from the interface with an antiferromagnetic layer toward a nonmagnetic intermediate sublayer, and a region not containing X, which extends from the interface with the nonmagnetic intermediate sublayer toward the antiferromagnetic layer. Consequently, both the unidirectional exchange bias magnetic field (Hex*) in the pinned magnetic layer and the rate of change in resistance (ΔR/R) can be improved.

REFERENCES:
patent: 6303218 (2001-10-01), Kamiguchi et al.
patent: 6313973 (2001-11-01), Fuke et al.
patent: 6456469 (2002-09-01), Gill
patent: 6548186 (2003-04-01), Carey et al.
patent: 6549383 (2003-04-01), Gill
patent: 6587317 (2003-07-01), Gill
patent: 6650512 (2003-11-01), Gill

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