Biasing characteristics of unshielded, boundary exchange-coupled SAL/MR sensors

Author

Liao, S.H. ; Yuan, S.W. ; Bertram, H.N.

Author_Institution

Applied Magnetics Corp., Goleta, CA, USA

Volume

29

Issue

6

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

3873

Lastpage

3875

Abstract

A magnetoresistive (MR) sensor with patterned exchange-biasing layer at its end regions exhibits quite and stable responses. A mathematical model simulating an unshielded, boundary exchange-biased SAL/MR structure is developed. The modeled results are in good agreement with the experimental data. However, biasing characteristics are quite different from modeled results assuming infinitely long stripes. For the boundary exchange-coupled SAL/MR design, the strip height has a significant impact on the biasing characteristics and the effect becomes even more pronounced as the track width is further reduced

Keywords

electric sensing devices; magnetisation; magnetoresistive devices; biasing characteristics; boundary exchange-coupled SAL/MR sensors; end regions; magnetoresistive sensor; patterned exchange-biasing layer; strip height; track width; Anisotropic magnetoresistance; Conductivity; Demagnetization; Magnetic sensors; Magnetization; Mathematical model; Predictive models; Semiconductor device modeling; Sensor phenomena and characterization; Switches;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.281327

Filename

281327