Magnetic sensing element biased by two antiferromagnetic...

Details Magnetic sensing element biased by two antiferromagnetic... Magnetic sensing element biased by two antiferromagnetic...

2006-02-21

2006-02-21

Klimowicz, William J (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07002782

ABSTRACT:
A magnetic sensing element comprising a stably magnetized free magnetic layer is provided. Hard bias layers are disposed at the two sides of the free magnetic layer, and a third antiferromagnetic layer is disposed on the free magnetic layer. Side regions of the free magnetic layer extending beyond the track width are overlaid by second antiferromagnetic layers with the third antiferromagnetic layer therebetween. The magnetization directions of the side regions of the free magnetic layer are pinned in the track width direction by a synergetic effect of the exchange coupling magnetic fields generated between the side regions of the free magnetic layer and the third antiferromagnetic layer and the longitudinal bias magnetic fields from the hard bias layers.

REFERENCES:
patent: 6094325 (2000-07-01), Tagawa et al.
patent: 6501627 (2002-12-01), Noma et al.
patent: 6507465 (2003-01-01), Nakamoto et al.
patent: 6822836 (2004-11-01), Gill
patent: 2003/0076635 (2003-04-01), Morinaga et al.
patent: 2003/0179507 (2003-09-01), Freitag et al.

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