Isotropically conducting (hidden) quantum Hall stripe phases in a two-dimensional electron gas

@article{Huang2020IsotropicallyC,
  title={Isotropically conducting (hidden) quantum Hall stripe phases in a two-dimensional electron gas},
  author={Yi Huang and Michael Sammon and Michael A. Zudov and B. I. Shklovskii},
  journal={Physical Review B},
  year={2020}
}
Quantum Hall stripe (QHS) phases, predicted by the Hartree-Fock theory, are manifested in GaAs-based two-dimensional electron gases as giant resistance anisotropies. Here, we predict a ``hidden'' QHS phase which exhibits \emph{isotropic} resistivity whose value, determined by the density of states of QHS, is independent of the Landau index $N$ and is inversely proportional to the Drude conductivity at zero magnetic field. At high enough $N$, this phase yields to an Ando-Unemura-Coleridge… 

Figures from this paper

Hidden Quantum Hall Stripes in AlxGa1− xAs=Al0.24Ga0.76As Quantum Wells
X. Fu, Yi Huang (黄奕) , Q. Shi, B. I. Shklovskii, M. A. Zudov, G. C. Gardner, and M. J. Manfra School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA Microsoft
Anomalous nematic state to stripe phase transition driven by in-plane magnetic fields
X. Fu, Q. Shi, ∗ M. A. Zudov, † G. C. Gardner, 3 J. D. Watson, 4, ‡ M. J. Manfra, 3, 4, 5 K. W. Baldwin, L. N. Pfeiffer, and K. W. West School of Physics and Astronomy, University of Minnesota,
Hidden Quantum Hall Stripes in Al_{x}Ga_{1-x}As/Al_{0.24}Ga_{0.76}As Quantum Wells.
TLDR
It is established that the stripe phases are more robust than theoretically predicted, calling for improved theoretical treatment, and it is shown that the hQHS phases do not occur in ultrahigh mobility GaAs quantum wells but are likely to be found in other systems.

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