Graphene: Junctions and STM Spectra

Details Graphene: Junctions and STM Spectra Graphene: Junctions and STM Spectra

2011-11-27

arxiv.org/abs/1111.6275v1

Physics

Condensed Matter

Strongly Correlated Electrons

Invited review article for WSPC's Annual Review on Graphene

Scientific paper

In this review we focus on the effect of the Dirac nature of graphene quasiparticles on two separate aspects. The first of these involves transport across superconducting graphene junctions with barriers of thickness $d_0$ and arbitrary gate voltages $V_0$ applied across the barrier region. The second aspect involves study of the presence of localized magnetic impurities in graphene and we show that Kondo effect in graphene is unconventional and can be tuned by gate voltage. We also discuss scanning tunneling conductance spectra phenomenon for both doped and undoped graphene. We show that the position of the impurity on or in graphene plays a subtle role and affects the underlying physics of STM spectra in doped graphene.

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