Strongly interacting 2D electron systems: Evidence for enhanced 1D edge-channel coupling

C. Marty; C. Reichl; S. Parolo; I. Grandt-Ionita; J. Scharnetzky; W. Dietsche; W. Wegscheider

Strongly interacting 2D electron systems: Evidence for enhanced 1D edge-channel coupling

Mesoscale and Nanoscale Physics 2023-07-18 v2 Strongly Correlated Electrons

Authors: C. Marty , C. Reichl , S. Parolo , I. Grandt-Ionita , J. Scharnetzky , W. Dietsche , W. Wegscheider

Abstract

We observe nearly vanishing Hall resistances for integer filling factors in a counterflow (CF) experiment on a density balanced 2D bilayer system. Filling factor dependent equilibration lengths demonstrate enhanced 1D coupling via edge-channels. Due to the narrow barrier the edge-modes of the two 2DEGs are in close proximity allowing for 1D excitonic correlations. Electron drag measurements confirm the observed quantum state selective coupling between the layers.

Keywords

electronic structure quantum hall effect two-dimensional electron gas

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@article{arxiv.2307.04174,
  title  = {Strongly interacting 2D electron systems: Evidence for enhanced 1D edge-channel coupling},
  author = {C. Marty and C. Reichl and S. Parolo and I. Grandt-Ionita and J. Scharnetzky and W. Dietsche and W. Wegscheider},
  journal= {arXiv preprint arXiv:2307.04174},
  year   = {2023}
}

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Strongly interacting 2D electron systems: Evidence for enhanced 1D edge-channel coupling

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