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Updated: Jul 17, 2026

Fabrication of Gate-tunable Graphene Devices for Scanning Tunneling Microscopy Studies with Coulomb Impurities
Published on: July 24, 2015
Hidden one-electron interactions in carbon nanotubes revealed in graphene nanostrips
Carter T White1, Junwen Li, Daniel Gunlycke
1Chemistry Division, Naval Research Laboratory, Washington, DC 20375, USA. carter.white@nrl.navy.mil
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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