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Paper   IPM / P / 8953
School of Physics
  Title:   Conductance of a Disordered Graphene Superlattice
1.  N. Abedpour
2.  A. Esmailpour
3.  R. Asgari
4.  M. R . Rahimi Tabar
  Status:   Published
  Journal: Phys. Rev. B
  Vol.:  79
  Year:  2009
  Pages:   165412
  Supported by:  IPM
We study the conductance of graphene-based superlattice system in the presence of disorder. The system consists of a sequence of electron doped graphene as wells together with hole doped graphene as barriers. The effect of disorder in transmission probability through the system with different sizes are studied. We show that in a disordered superlattice created separately by electron and hole regions, transmits mostly belongs to the quasiparticles that approach almost perpendicularly to the barrier interfaces. We calculate the conductivity of the finite size system in the presence of disorder and show that the conductivity decreases by increasing the system size and for specific cases, the conductance tends to a finite value.

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