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Title: Parity conservation in electron-phonon scattering in zigzag graphene nanoribbon

In contrast with carbon nanotubes, the absence of translational symmetry (or periodical boundary condition) in the restricted direction of zigzag graphene nanoribbon removes the selection rule of subband number conservation. However, zigzag graphene nanoribbons with even dimers do have the inversion symmetry. We, therefore, propose a selection rule of parity conservation for electron-phonon interactions. The electron-phonon scattering matrix in zigzag graphene nanoribbons is developed using the tight-binging model within the deformation potential approximation.
Authors:
; ;  [1]
  1. Electronic Packaging Laboratory, University at Buffalo, SUNY, Buffalo, New York 14260 (United States)
Publication Date:
OSTI Identifier:
22304435
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; BOUNDARY CONDITIONS; CARBON NANOTUBES; DEFORMATION; DIMERS; ELECTRON-PHONON COUPLING; GRAPHENE; NANOSTRUCTURES; PERIODICITY; PHONONS; SCATTERING; SELECTION RULES; SYMMETRY