Magnetoresistive sensor with high resistivity flux guide

Details Magnetoresistive sensor with high resistivity flux guide Magnetoresistive sensor with high resistivity flux guide

1995-11-30

1999-06-01

Ometz, David L.

Dynamic magnetic information storage or retrieval

Head

Hall effect

G11B 539

Patent

active

059093447

ABSTRACT:
A magnetoresistive read sensor having an MR sensing element in parallel with a flux guide. The flux guide is made of an amorphous alloy having a composition of Co.sub.a Hf.sub.b Nb.sub.c where a is the concentration of Co, b is the concentration of Hf, and c is the concentration of Nb. Co.sub.a Hf.sub.b Nb.sub.c has a high magnetization and is highly resistive which reduces the amount of sense current flowing through the flux guide, thus increasing the amplitude of the signal sensed by the MR sensing element.

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