Electronic Structure of gated graphene and graphene ribbons

Simple item page
dc.creatorFernandez-Rossier, J.
dc.creatorPalacios, J. J.
dc.creatorBrey, L.
dc.date2007-02-20
dc.date.accessioned2026-07-07T08:26:12Z
dc.date.available2026-07-07T08:26:12Z
dc.descriptionWe study the electronic structure of gated graphene sheets. We consider both infinite graphene and finite width ribbons. The effect of Coulomb interactions between the electrically injected carriers and the coupling to the external gate are computed self-consistently in the Hartree approximation. We compute the average density of extra carriers, $n_{2D}$, the number of occupied subbands and the density profiles as a function of the gate potential $V_g$. We discuss quantum corrections to the classical capacitance and we calculate the threshold $V_g$ above which semiconducting armchair ribbons conduct. We find that the ideal conductance of perfectly transmitting wide ribbons is proportional to the square root of the gate voltage.
dc.description8 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0702473
dc.identifierhttp://arxiv.org/abs/cond-mat/0702473
dc.identifierPhys. Rev. B 75, 205441 (2007)
dc.identifierdoi:10.1103/PhysRevB.75.205441
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/136862
dc.subjectMesoscale and Nanoscale Physics
dc.titleElectronic Structure of gated graphene and graphene ribbons
dc.typetext

Files

Collections

arXiv