Phase space for the breakdown of the quantum Hall effect in epitaxial graphene.

@article{AlexanderWebber2013PhaseSF,
  title={Phase space for the breakdown of the quantum Hall effect in epitaxial graphene.},
  author={J. Alexander-Webber and A. Baker and T. Janssen and A. Tzalenchuk and S. Lara-Avila and S. Kubatkin and R. Yakimova and B. Piot and D. Maude and R. Nicholas},
  journal={Physical Review Letters},
  year={2013},
  volume={111},
  pages={096601}
}
  • J. Alexander-Webber, A. Baker, +7 authors R. Nicholas
  • Published 2013
  • Physics
  • Physical Review Letters
  • We report the phase space defined by the quantum Hall effect breakdown in polymer gated epitaxial graphene on SiC (SiC/G) as a function of temperature, current, carrier density, and magnetic fields up to 30 T. At 2 K, breakdown currents (I-c) almost 2 orders of magnitude greater than in GaAs devices are observed. The phase boundary of the dissipationless state (rho(xx) = 0) shows a [1 - (T/T-c)(2)] dependence and persists up to T-c > 45 K at 29 T. With magnetic field Ic was found to increase… CONTINUE READING

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