Transport properties of graphene nanoribbon heterostructures

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We study the electronic and transport properties of heterostructures formed by armchair graphene nanoribbons with intersections of finite length. We describe the system by a tight-binding model and calculate the density of states and the conductance within the Green's function formalism based on real-space renormalization techniques. We show the apparition of interface states and bound states in the continuum which present a strong dependence of the heterostructure geometry. We investigate the effects on the conductance of an external perturbation applied on the edges atoms of the intersection region.
3 pages, 4 figures. To appear in Microelectronic Journal

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Mesoscale and Nanoscale Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/142299

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0711.2610
 http://arxiv.org/abs/0711.2610

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arXiv