Parity conservation in electron-phonon scattering in zigzag graphene nanoribbon

Journal Article · Mon Sep 15 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4895553· OSTI ID:22304435

Chu, Yanbiao; Gautreau, Pierre; Basaran, Cemal ^[1]

---

1. Electronic Packaging Laboratory, University at Buffalo, SUNY, Buffalo, New York 14260 (United States)

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.

• OSTI ID: 22304435
• Journal Information: Applied Physics Letters, Vol. 105, Issue 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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