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arXiv · 0705.0257

Tuning Kondo physics in Graphene with gate voltage

K. Sengupta·G. Baskaran
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Abstract

We show theoretically that graphene, which exhibits a massless Dirac like spectrum for its electrons, can exhibit unconventional Kondo effect that can be tuned by an experimentally controllable applied gate voltage. We demonstrate the presence of a finite critical Kondo coupling strength in neutral graphene. We discuss the possibility of multichannel Kondo effect in this system which might lead to a non-Fermi liquid like ground state and provide a discussion of possible experimental realization of Kondo phenomenon in graphene.

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K. Sengupta, G. Baskaran. 2007-05-04. Tuning Kondo physics in Graphene with gate voltage. https://doi.org/10.1103/physrevb.77.045417

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