Abstract

The purpose of this paper is to show by numerical computation how geometric parameters influence the Extraordinary Magnetoresistance (EMR) effect in an InAs-Au hybrid device. Symmetric IVVI and VIIV configurations were considered. The results show that the width and the length-width ratio of InAs are important geometrical parameters for the EMR effect along with the placement of the leads. Approximately the same EMR effect was obtained for both IVVI and VIIV configurations when the applied magnetic field ranged from -1T to 1T. In an optimized geometry the EMR effect can reach 43000% at 1Tesla for IVVI and 42700% at 1 Tesla for the VIIV configuration.

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