Magnetoresistive head

Details Magnetoresistive head Magnetoresistive head

1995-07-31

1997-08-26

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

056616210

ABSTRACT:
A magnetoresistive head used for reading information signals from a magnetic recording medium using a spin valve magnetoresistance effect, comprises a first ferromagnetic layer and a second ferromagnetic layer both are separated by a first nonmagnetic metal layer, a hard magnetic layer formed so as to contact to the second ferromagnetic layer, and a third ferromagnetic layer formed on the hard magnetic layer via a second nonmagnetic metal layer for shutting off exchange coupling and coupled to the second ferromagnetic layer and the hard magnetic layer by static magnetic combination.

REFERENCES:
patent: 5206590 (1993-04-01), Dieny et al.
patent: 5287238 (1994-02-01), Baumgart et al.
patent: 5452163 (1995-09-01), Coffey et al.

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