Angular dependence of current perpendicular to plane giant magnetoresistance in multilayer nanowire

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Abstract

We use incoherent scattering matrices to calculate the angle dependent magnetoresistance and find analytic expressions for a tri-layer current-perpendicular-to-plane nanowire. We find that the non-linearity of magnetoresistance versus β = cos 2(θ/2) can be quantitatively explained by reflected electrons using only experimental spin polarization as input. We extend this model to a multilayer nanowire and find the simulation approximately matches experiment.

Original languageEnglish (US)
Article number07C516
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
StatePublished - Apr 1 2012
Externally publishedYes

Bibliographical note

Funding Information:
We would like to thank Beth Stadler and Pinwei Huang for valuable discussions. This work was supported primarily by the MRSEC Program under Contract No. DMR-0819885 and by the University of Minnesota Supercomputing Institute for computer time.

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