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arXiv · 1307.2861

Electronic transport of folded graphene nanoribbons

Jhon W. González·Mónica Pacheco·Pedro Orellana·Luis Brey·Leonor Chico
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Abstract

We investigate the electronic transport properties of a folded graphene nanoribbon with monolayer nanoribbon contacts. We consider two possible foldings: either the nanoribbon can be folded onto itself in the shape of a hairpin with the nanoribbon leads at a $0^\circ$ angle, or the monolayer contacts have different directions, forming a $60^\circ$ angle. The system is described by a single $π$-band nearest-neighbor tight-binding Hamiltonian taking into account curvature effects. We have found that for the case of a nanoribbon folded over itself the conductance oscillates from almost zero and a finite value depending on the coupling between contacts, whereas in the $60^\circ$ angle folding the conductance is only slightly perturbed, allowing for the connection of graphene nanoelectronic components in a variety of geometries.

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Jhon W. González, Mónica Pacheco, Pedro Orellana, Luis Brey, Leonor Chico. 2013-07-10. Electronic transport of folded graphene nanoribbons. https://doi.org/10.1016/j.ssc.2012.04.023

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