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Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities

URN to cite this document:
urn:nbn:de:bvb:355-epub-322485
Kochan, Denis ; Gmitra, Martin ; Fabian, Jaroslav
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Date of publication of this fulltext: 27 Jul 2015 09:34


Abstract

We propose that the observed small (100 ps) spin relaxation time in graphene is due to resonant scattering by local magnetic moments. At resonances, magnetic moments behave as spin hot spots: the spin-flip scattering rates are as large as the spin-conserving ones, as long as the exchange interaction is greater than the resonance width. Smearing of the resonance peaks by the presence of ...

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