Ballistic transport in graphene nanostrips in the presence of disorder: importance of edge effects.
Stimulated by recent advances in isolating graphene and similarities to single-wall carbon nanotubes, simulations were performed to assess the effects of static disorder on the conductance of metallic armchair- and zigzag-edge graphene nanostrips. Both strip types were found to have outstanding ballistic transport properties in the presence of a substrate-induced disorder. However, only the zigzag-edge strips retain these properties in the presence of irregular edges, making them better initial synthetic targets for ballistic device applications.
Areshkin
Denis A
DA
George Washington University, Washington, DC 20052, and Naval Research Laboratory, Washington, DC 20375, USA.
Gunlycke
Daniel
D
White
Carter T
CT
D006108:Graphite / Q000737:chemistry*; D037742:Nanotubes, Carbon / Q000737:chemistry*
D037742:Nanotubes, Carbon; D006108:Graphite