Anomalous exciton condensation in graphene bilayers.

@article{Barlas2010AnomalousEC,
  title={Anomalous exciton condensation in graphene bilayers.},
  author={Y. Barlas and R. Cot'e and J. Lambert and A. MacDonald},
  journal={Physical review letters},
  year={2010},
  volume={104 9},
  pages={
          096802
        }
}
  • Y. Barlas, R. Cot'e, +1 author A. MacDonald
  • Published 2010
  • Physics, Medicine
  • Physical review letters
  • In ordinary semiconductor bilayers, exciton condensates appear at total Landau-level filling factor nu{T}=1. We predict that similar states will occur in Bernal stacked graphene bilayers at many nonzero integer filling factors. For nu{T}=-3, 1 we find that the superfluid density of the exciton condensate vanishes and that a finite-temperature fluctuation-induced first order isotropic-smectic phase transition occurs when the layer densities are not balanced. These anomalous properties of bilayer… CONTINUE READING

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