Modelling the effects of boundary pinning in magnetoresistive elements

Author

Tomlinson, S.L. ; Hill, E.W. ; Miles, J.J.

Author_Institution

Dept. of Electr. Eng., Manchester Univ., UK

Volume

27

Issue

6

fYear

1991

fDate

11/1/1991 12:00:00 AM

Firstpage

4698

Lastpage

4700

Abstract

The authors discuss the inclusion of boundary pinning within an established micromagnetic model (Tomlinson and Hill, 1990). An example of boundary pinning for a magnetoresistive element (MRE) suitable for magnetometry applications is presented, followed by an illustration of the quantitative analysis of information storage transducer biasing. The modeling of techniques in which regions of the MR strip are forced to lie in a direction which is favorable for an overall improvement in performance are described. Results presented show that the calculated sensitivity of a magnetometer can be increased whilst at the same time reducing the bias field requirement. Results are also presented for information storage readout transducers for which domain stability must be addressed

Keywords

magnetic devices; magnetometers; magnetoresistance; transducers; MR strip; MRE; boundary pinning effects modelling; domain stability; information storage readout transducers; information storage transducer biasing; magnetometry; magnetoresistive element; micromagnetic model; quantitative analysis; Couplings; Helium; Magnetic anisotropy; Magnetic materials; Magnetoresistance; Micromagnetics; Perpendicular magnetic anisotropy; Saturation magnetization; Strips; Transducers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.278919

Filename

278919