Unconventional integer quantum Hall effect in graphene.

  title={Unconventional integer quantum Hall effect in graphene.},
  author={V. Gusynin and S. Sharapov},
  journal={Physical review letters},
  volume={95 14},
  • V. Gusynin, S. Sharapov
  • Published 2005
  • Physics, Medicine
  • Physical review letters
  • Monolayer graphite films, or graphene, have quasiparticle excitations that can be described by (2+1)-dimensional Dirac theory. We demonstrate that this produces an unconventional form of the quantized Hall conductivity sigma(xy) = -(2e2/h)(2n+1) with n = 0, 1, ..., which notably distinguishes graphene from other materials where the integer quantum Hall effect was observed. This unconventional quantization is caused by the quantum anomaly of the n=0 Landau level and was discovered in recent… CONTINUE READING

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