Stabilization of giant magnetoresistive transducers

Details Stabilization of giant magnetoresistive transducers Stabilization of giant magnetoresistive transducers

1995-09-18

1997-08-12

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

056571917

ABSTRACT:
A magnetic transducer employing giant magnetoresistance (GMR) has alternating ferromagnetic layers and spacer layers, the spacer layers having either different material compositions or different thicknesses across their widths to produce variations in the coupling between adjacent ferromagnetic layers across their widths. Longitudinal stabilization of the multi-layer GMR sensor is achieved by the use of exchange coupling layers on the top and/or bottom of the sensor edge-track regions.

REFERENCES:
patent: 5406433 (1995-04-01), Smith

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