GMR multilayer device with ring type bridge structure

Author

Kim, K.Y. ; Booij, W.E. ; Moseley, R.W. ; Barber, Z.H. ; Blamire, M.G. ; Evetts, J.E.

Author_Institution

Dept. of Mater. Sci. & Metall., Cambridge Univ., UK

Volume

35

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

3646

Lastpage

3648

Abstract

In this work, we report the results for a GMR device based on a Co/Cu multilayer with a ring type bridge structure. This newly designed device showed a large angle dependent response when the sample was rotated in an applied field. The imbalance effect from the bridge structure was a consequence of demagnetisation effects in the GMR ring structure, leading to higher internal magnetic fields in the arms of the bridge parallel to the field direction. This simple ring type bridge structure can be suitable for a wide range of magnetic sensor applications

Keywords

cobalt; copper; demagnetisation; giant magnetoresistance; magnetic multilayers; magnetic sensors; magnetoresistive devices; Co-Cu; Co/Cu multilayer; GMR multilayer device; demagnetisation effects; large angle dependent response; magnetic sensor applications; ring type bridge structure; Argon; Bridge circuits; Electrical resistance measurement; Lithography; Magnetic field measurement; Magnetic multilayers; Magnetic sensors; Nonhomogeneous media; Soft magnetic materials; Sputtering;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.800618

Filename

800618