Magnetoresistive-effect thin film, magnetoresistive-effect...

Details Magnetoresistive-effect thin film, magnetoresistive-effect... Magnetoresistive-effect thin film, magnetoresistive-effect...

2006-08-29

2006-08-29

Davis, David (Department: 2652)

Dynamic magnetic information storage or retrieval

Head

Magnetoresistive reproducing head

Reexamination Certificate

active

07099124

ABSTRACT:
A spin-valve film used in a magnetoresistive-effect magnetic head includes an antiferromagnetic layer, a magnetization fixing layer, a non-magnetic layer, and a free layer. The magnetization fixing layer or the free layer is provided with a layered ferromagnetic structure which includes a pair of magnetic layers through the intermediary of a non-magnetic layer. In the layered ferromagnetic structure, a surface oxidation layer is formed on the surface of the non-magnetic intermediate layer to the side of the non-magnetic layer.

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patent: 11-168250 (1999-06-01), None
Egelhoff, Jr. et al., “Oxygen as a Surfactant in the Growth of Giant Magnetoresistance Spin Valves,” J. Appl. Phys., 1997, pp. 6142-6151, vol. 82.
Kamiguchi et al., “CoFe Specular Spin Valves with a Nano Oxide Layer,” IEEE International Magnetics Conference, May 18-21, 1999, Kyongju, Korea, 2 pages.
Speriosu et al., “Spin Valves with Synthetic Ferrimagnets,” IEEE International Magnetics Conference, Apr. 9-12, 1996, Seattle, Washington, 2 pages.
Veloso et al., “Spin Valves with Synthetic Ferrimagnet and Antiferromagnet Free and Pinned Layers,” IEEE Transactions on Magnetics, 1999, pp. 2568-2570, vol. 35.

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