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

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

2010-06-04

arxiv.org/abs/1006.0816v1

Phys. Rev. B 81, 205437 (2010) [5 pages]

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

please see the published version at http://prb.aps.org/abstract/PRB/v81/i20/e205437

Scientific paper

10.1103/PhysRevB.81.205437

The current-voltage (I-V) 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.

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