Universal Landauer conductance in chiral symmetric two-dimensional systems

@article{Barci2008UniversalLC,
  title={Universal Landauer conductance in chiral symmetric two-dimensional systems},
  author={Daniel G. Barci and Luis E. Oxman},
  journal={Physical Review B},
  year={2008},
  volume={77},
  pages={125128}
}
We study transport properties of an arbitrarily shaped ultraclean graphene sheet, adiabatically connected to leads,composed by the same material. If the localized interactions do not destroy chiral symmetry, we show that the conductance is quantized, since it is dominated by the quasi one-dimensional leads. As an example, we show that smooth structural deformations of the graphene plane do not modify the conductance quantization. 

References

SHOWING 1-2 OF 2 REFERENCES
The electronic properties of graphene
This article reviews the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations. The Dirac electrons can be
Graphene as an electronic membrane
We investigate the membrane aspect of graphene and its impact on the electronic properties. We show that rippling generates spatially varying electrochemical potential that is proportional to the