Magnetic transducer using magnetoresistance effect

Details Magnetic transducer using magnetoresistance effect Magnetic transducer using magnetoresistance effect

1985-01-25

1987-05-05

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360125, G11B 530

Patent

active

046636846

ABSTRACT:
Disclosed is a magnetic transducer using a magnetoresistance effect, comprising a magnetoresistive film, a hard magnetic film for applying a transverse biasing magnetic field thereto, and a conductive film through which current for applying the transverse biasing magnetic field to the magnetoresistive film flows. The conductive film may be either in electrical contact with or in electrical insulation from the magnetoresistive film. In this magnetic transducer, even when the heights of the respective constituents have changed, the transverse biasing magnetic field to be applied does not change considerably, and an optimum bias field strength is readily attained.

REFERENCES:
patent: 3864751 (1975-02-01), Beaulieu et al.
patent: 4354212 (1982-10-01), Nouchi et al.
patent: 4562503 (1985-12-01), Fujioka et al.
IBM/TDB, vol. 19, No. 7, Dec. 1976, pp. 2430-2431, "Magnetoresistive Head Element", by Cheatham et al.
IEEE Transactions on Magnetics, vol. MAG-17, No. 6, Nov. 1981, "High-Track-Density . . . Head", by Kelley et al., pp. 2890-2892.

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