Tuning Kondo physics in Graphene with gate voltage

Details Tuning Kondo physics in Graphene with gate voltage Tuning Kondo physics in Graphene with gate voltage

2007-05-02

arxiv.org/abs/0705.0257v2

Phys. Rev. B 77, 045417 (2007).

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure; v2

Scientific paper

10.1103/PhysRevB.77.045417

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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