Abstract
Numerical calculations based on the recursive Green's function method in the tight-binding approximation are performed to calculate the dimensionless conductance in disordered graphene nanoribbons with Gaussian scatterers. The influence of the transition from short- to long-ranged disorder on is studied as well as its effects on the formation of a perfectly conducting channel. We also investigate the dependence of electronic energy on the perfectly conducting channel. We propose and calculate a backscattering estimate in order to establish the connection between the perfectly conducting channel (with ) and the amount of intervalley scattering.
- Received 23 July 2012
DOI:https://doi.org/10.1103/PhysRevB.86.205111
©2012 American Physical Society