Thin-film and micro-fiber Permalloy magnetoresistors. A comparison

Author

Ciureanu, P. ; Rudkowski, P. ; Ström-Olsen, J.O. ; Yelon, A.

Author_Institution

Dept. of Eng. Phys., Ecole Polytech., Montreal, Que., Canada

Volume

30

Issue

6

fYear

1994

fDate

11/1/1994 12:00:00 AM

Firstpage

4620

Lastpage

4622

Abstract

Thin-film and micro-fiber magnetoresistive sensors are compared in terms of preparation, crystalline structure and anisotropy, domain patterns, magnetization processes, transverse magnetoresistive responses and sensing devices. The relative merits of each sensor are discussed and exemplified for the case of application to a gear tooth sensor. A negative aspect of the micro-fiber is the high transverse demagnetizing factor, which decreases the sensitivity. However, micro-fiber sensors can be produced at a much lower cost than thin-film ones and their longitudinal sensitivity is still high

Keywords

Permalloy; crystal structure; demagnetisation; magnetic anisotropy; magnetic domains; magnetic sensors; magnetisation; magnetoresistive devices; FeNi; Permalloy; anisotropy; crystalline structure; demagnetizing factor; domain patterns; gear tooth sensor; longitudinal sensitivity; magnetization; micro-fiber magnetoresistive sensors; preparation; thin-film magnetoresistors; Crystallization; Gears; Magnetic sensors; Magnetization processes; Magnetoresistance; Magnetoresistive devices; Teeth; Thin film devices; Thin film sensors; Transistors;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.334168

Filename

334168