Magnetoresistance anisotropy of a Bi antidot array

Author

Strijkers, G.J. ; Yang, F.Y. ; Reich, D.H. ; Chien, C.L. ; Searson, P.C. ; Streiniker, Y.M. ; Bergman, D.J.

Author_Institution

Dept. of Phys. & Astron., Johns Hopkins Univ., Baltimore, MD, USA

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2067

Lastpage

2069

Abstract

We have measured the magnetoresistance of a Bi antidot array film. The magnetoresistance exhibits a pronounced angular dependence on the direction of the magnetic field, e.g., the longitudinal relative magnetoresistance at 5 K displays an angular variation between 1.8 and 3.4 in a field of 4.9 T. The effect is the result of the interference between cigar-shaped regions of strong current distortions around the voids in the Bi film. The measurements can be understood and quantitatively reproduced by theoretical calculations

Keywords

arrays; bismuth; magnetoresistance; semimetallic thin films; voids (solid); 4.9 T; 5 K; Bi; Bi antidot array; angular dependence; film; longitudinal relative magnetoresistance; magnetic field direction; magnetoresistance anisotropy; periodic composite structures; strong current distortions; voids; Astronomy; Bismuth; Conductivity; Distortion measurement; Extraterrestrial measurements; Magnetic field measurement; Magnetic films; Magnetic materials; Magnetoresistance; Physics;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951055

Filename

951055