Valley filter and valley valve in graphene

  title={Valley filter and valley valve in graphene},
  author={Adam Rycerz and Jakub Tworzydło and C. W. J. Beenakker},
  journal={Nature Physics},
The potential of graphene for carbon electronics rests on the possibilities offered by its unusual band structure to create devices that have no analogue in silicon-based electronics1,2. Conduction and valence bands in graphene form conically shaped valleys, touching at a point called the Dirac point. There are two inequivalent Dirac points in the Brillouin zone, related by time-reversal symmetry. Intervalley scattering is suppressed in pure samples3,4,5. The independence and degeneracy of the… Expand
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