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Impurity-induced Spin-orbit Coupling in Graphene

Overview
Journal Phys Rev Lett
Specialty Biophysics
Date 2009 Aug 8
PMID 19659232
Citations 34
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Abstract

We study the effect of impurities in inducing spin-orbit coupling in graphene. We show that the sp3 distortion induced by an impurity can lead to a large increase in the spin-orbit coupling with a value comparable to the one found in diamond and other zinc-blende semiconductors. The spin-flip scattering produced by the impurity leads to spin scattering lengths of the order found in recent experiments. Our results indicate that the spin-orbit coupling can be controlled via the impurity coverage.

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