Current-voltage (I-V ) characteristics of armchair graphene nanoribbons under uniaxial strain

M. Topsakal, V. M.K. Bagci, S. Ciraci

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129 Scopus citations

Abstract

The current-voltage characteristics of armchair graphene nanoribbons under a local uniaxial tension are investigated by using first-principles quantum transport calculations. It is shown that for a given value of bias voltage, the resulting current depends strongly on the applied tension. The observed trends are explained by means of changes in the band gaps of the nanoribbons due to the applied uniaxial tension. In the course of plastic deformation, the irreversible structural changes and derivation of carbon monatomic chains from graphene pieces can be monitored by two-probe transport measurements.

Original languageEnglish (US)
Article number205437
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number20
DOIs
StatePublished - May 25 2010

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