Thin film magnetoresistive head

Details Thin film magnetoresistive head Thin film magnetoresistive head

1977-09-21

1979-08-14

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360111, 324249, G11B 530

Patent

active

041647700

ABSTRACT:
A flux sensitive magnetic head is disclosed wherein a thin single domain magnetic film coated on a non-conductor bridges the head gap. A magnetic bias is applied to the hard axis of the film; and flux entering the gap causes the resistivity of the film to vary about a resistance reference established by the bias. The resistance variation is converted to a useful signal corresponding to the flux entering the gap.

REFERENCES:
patent: 3239754 (1966-03-01), Odom, Jr. et al.
patent: 3242269 (1966-03-01), Pettengill
patent: 3369083 (1968-02-01), Clapper et al.
patent: 3400328 (1968-09-01), Penn et al.
patent: 3443213 (1969-05-01), Bader et al.
patent: 3829894 (1974-08-01), Watanabe et al.

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