Giant magnetoresistance effect device with magnetically sensitiv

Details Giant magnetoresistance effect device with magnetically sensitiv Giant magnetoresistance effect device with magnetically sensitiv

1997-03-26

1998-10-13

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

058221581

ABSTRACT:
A longitudinal type magnetoresistance effect device employed in a thin-film magnetic head enclosed within a high-density magnetic recording device or in a high-sensitivity magnetic sensor, in which the rate of change in resistance dependent on the sense current density may be prevented from being lowered and in which high magnetic field sensitivity may be realized even in the high sense current density area. The sense current flows in the device in a direction at right angles to the plane of the magnetic recording medium. At least two or more layers of the soft magnetic layers and the non-magnetic electrically conductive layers are stacked in multiple layers and has a broad width portion in an area which proves to be a current route for the sense current.

REFERENCES:
patent: 5698335 (1997-12-01), Iwasaki

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