Hidden One-Electron Interactions in Carbon Nanotubes Revealed in Graphene Nanostrips
Nano Letters2007Vol. 7(3), pp. 825–830
Citations Over TimeTop 1% of 2007 papers
Abstract
Many single-wall carbon nanotube (SWNT) properties near the Fermi level were successfully predicted using a nearest-neighbor tight-binding model characterized by a single parameter, V1. We show however that this model fails for armchair-edge graphene nanostrips due to interactions directly across hexagons. These same interactions are found largely hidden in the description of SWNTs, where they renormalize V1 leaving previous nearest-neighbor model SWNT results largely intact while resolving a long-standing puzzle regarding the magnitude of V1.
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