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Electron transport simulations of 4-terminal crossed graphene nanoribbons devices

AuthorsBrandimarte, Pedro; Papior, Nick; Engelund, Mads; García-Lekue, Aran; Frederiksen, Thomas; Sánchez-Portal, Daniel
Issue Date2016
CitationAPS March Meeting 2016
AbstractRecently, it has been reported theoretically a current switching mechanism by voltage control in a system made by two perpendicular 14-armchair graphene nanoribbons (GNRs). In order to investigate the possibilities of using crossed GNRs as ON/OFF devices, we have studied their electronic and transport properties as function structural parameters determining the crossing. Our calculations were performed with TranSIESTA code, which has been recently generalized to consider N >= 1 arbitrarily distributed electrodes at finite bias. We find that the transmission along each individual GNR and among them strongly depends on the stacking. For a 60º rotation angle, the lattice matching in the crossing region provokes a strong scattering effect that translates into an increased interlayer transmission.
DescriptionResumen del trabajo presentado al APS March Meeting, celebrado en Baltimore, Maryland (USA) del 14 al 18 de marzo de 2016.
Appears in Collections:(CFM) Comunicaciones congresos
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