Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1998-03-12
2000-06-13
Kiliman, Leszek
Stock material or miscellaneous articles
Composite
Of inorganic material
428694R, 428694T, 428694TM, 428694TS, 428900, 360113, 324252, 32420721, 338 32R, 427128, 427129, 427130, G11B 566
Patent
active
060747676
ABSTRACT:
Disclosed are spin valve magnetoresistive heads, air bearing sliders and magnetic storage systems employing spin valve magnetoresistive heads, and methods for fabricating spin valve magnetoresistive heads and air bearing sliders employing spin valve magnetoresistive heads. The spin valve magnetoresistive head in accordance with the present invention employs two antiferromagnetic films, one exchange-coupling to the reference layer in a first direction in the read region and the other exchange-coupling to the ferromagnetic film in a second direction substantially perpendicular to the first direction in the end regions. The exchange-coupled reference layer and the first antiferromagnetic film exhibit a blocking temperature equal to or greater than 300.degree. C. The exchange-coupled ferromagnetic/second antiferromagnetic films exhibit a blocking temperature equal to or greater than 200.degree. C. The two high blocking temperatures ensure thermal stabilty during sensor operation.
REFERENCES:
patent: 4785366 (1988-11-01), Krounbi et al.
patent: 5206590 (1993-04-01), Dieny et al.
patent: 5287238 (1994-02-01), Baumgart
patent: 5329413 (1994-07-01), Kondoh et al.
patent: 5492720 (1996-02-01), Gill et al.
patent: 5508866 (1996-04-01), Gill et al.
patent: 5528440 (1996-06-01), Fontana
patent: 5552949 (1996-09-01), Hashimoto et al.
patent: 5583725 (1996-12-01), Coffey et al.
patent: 5657191 (1997-08-01), Yuan
S. Mao et al. "NiMn-pinned spin valves with high pinning field made by ion beam sputtering", Appl. Phys Lett.69(23), Dec. 2, 1996, pp. 3593-3595.
"Improved exchange coupling between ferromagnetic Ni-Fe and antiferromagnetic Ni-Mn-based films", Appl.Phys.Lett.65 (9), Aug. 29, 1994, pp. 1183-1185; Tsan Lin, et. al.
"Exchange Coupling between Antiferromagnetic Mn-Ir and Ferromagnetic Ni-Fe Layers", Jpn.J.Appl.Phys. vol. 35, Part 1, No. 2A, Feb., 1996, K. Hoshino, et. al.
"Spin-valve giant magnetoresistive films with antiferomagnetic Ir-Mn layers", J.Appl.Phys.81(8), Apr. 15, 1997, pp. 4004-4006, H.N. Fuke, et. al.
Holcombe John H.
International Business Machines - Corporation
Kiliman Leszek
LandOfFree
Spin valve magnetoresistive head with two sets of ferromagnetic/ does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spin valve magnetoresistive head with two sets of ferromagnetic/, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin valve magnetoresistive head with two sets of ferromagnetic/ will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2067007