Magnetoresistive head with enhanced exchange bias field

Details Magnetoresistive head with enhanced exchange bias field Magnetoresistive head with enhanced exchange bias field

1991-10-18

1993-11-16

Westin, Edward P.

Dynamic magnetic information storage or retrieval

Head

Hall effect

427131, 2041922, 338 32R, G11B 539, H01L 4308, B05D 512

Patent

active

052629147

ABSTRACT:
A magnetoresistive (MR) read transducer in which a layered structure comprising an MR layer, an antiferromagnetic material in direct contact with the MR layer and a thin layer of interdiffusion material in contact with the layer of antiferromagnetic material is subjected to a heating process to a temperature within a chosen temperature for a chosen time to form a magnetic interface between the antiferromagnetic material the MR layer. The magnetic interface produces a high level of exchange bias with the MR layer.

REFERENCES:
patent: 3982234 (1976-09-01), Voegeli
patent: 4103315 (1978-07-01), Hempstead et al.
patent: 4785366 (1988-11-01), Krounbi et al.
patent: 4809109 (1989-02-01), Howard et al.
patent: 4825325 (1989-04-01), Howard
patent: 5032945 (1991-07-01), Argyle et al.

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