Quantum Conductance of Achiral Graphene Ribbons and Carbon Nanotubes

Details Quantum Conductance of Achiral Graphene Ribbons and Carbon Nanotubes Quantum Conductance of Achiral Graphene Ribbons and Carbon Nanotubes

2008-03-12

arxiv.org/abs/0803.1761v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 figures

Scientific paper

10.1134/S1063776109010166

Explicit expressions of the band spectrum near the neutrality point for armchair and zigzag graphene ribbons and carbon nanotubes were derived based on a tight-binding macromolecule model of graphene. The obtained dispersion relations are used to determine and compare the conductance ladders of these structures and are beneficial for many other applications. Our results are different in many respects from previously reported data. This new information forms a solid reliable basis for evaluation of the potential of graphene nanoelectronic devices.

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