Journal
MICROELECTRONICS JOURNAL
Volume 39, Issue 3-4, Pages 537-540Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mejo.2007.07.080
Keywords
graphene nanoribbons; electronic properties; transport properties; 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. (C) 2007 Elsevier Ltd. All rights reserved.
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