Synthetic anti-parallel spin valve with thin AFM layer for...

Details Synthetic anti-parallel spin valve with thin AFM layer for... Synthetic anti-parallel spin valve with thin AFM layer for...

2005-12-06

2005-12-06

Evans, Jefferson (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

06972934

ABSTRACT:
A method for forming top and bottom spin valve sensors and the sensors so formed, the sensors having a strongly coupled SyAP pinned layer and an ultra-thin antiferromagnetic pinning layer. The two strongly coupled ferromagnetic layers comprising the SyAP pinned layer in the top valve configuration are separated by a Ru spacer layer approximately 3 angstroms thick, while the two layers in the bottom spin valve configuration are separated by a Rh spacer layer approximately 5 angstroms thick. This allows the use of an ultra thin MnPt antiferromagnetic pinning layer of thickness between approximately 80 and approximately 150 angstroms. The sensor structure produced thereby is suitable for high density applications.

REFERENCES:
patent: 6122150 (2000-09-01), Gill
patent: 6175476 (2001-01-01), Huai et al.
patent: 6201671 (2001-03-01), Pinarbasi
patent: 6208491 (2001-03-01), Pinarbasi
patent: 6208492 (2001-03-01), Pinarbasi
patent: 6317297 (2001-11-01), Tong et al.
patent: 6338899 (2002-01-01), Fukuzawa et al.
patent: 6418048 (2002-07-01), Sin et al.
patent: 6447935 (2002-09-01), Zhang et al.
patent: 6456469 (2002-09-01), Gill
patent: 6522507 (2003-02-01), Horng et al.
patent: 2000-182224 (2000-06-01), None
Spin valves with synthetic ferrimagnet and antiferromagnet free and pinned layers; Veloso, A.; Freitas, P.P.; Melo, L.V.; IEEE Transactions on Magnetics, vol.: 35, Issue: 5, Sep. 1999., pp. 2568-2570.

Affiliated with

Also associated with

Rating

Synthetic anti-parallel spin valve with thin AFM layer for... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Synthetic anti-parallel spin valve with thin AFM layer for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic anti-parallel spin valve with thin AFM layer for... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3481348