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arXiv · 1109.5994

Realizing Universal Edge Properties in Graphene Fractional Quantum Hall Liquids

Zi-Xiang Hu·R. N. Bhatt·Xin Wan·Kun Yang
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Abstract

Universal chiral Luttinger liquid behavior has been predicted for fractional quantum Hall edge states, but so far has not been observed experimentally in semiconductor-based two-dimensional electron gases. One likely cause of this absence of universality is the generic occurrence of edge reconstruction in such systems, which is the result of a competition between confinement potential and Coulomb repulsion. We show that due to a completely different mechanism of confinement, edge reconstruction can be avoided in graphene, which allows for the observation of the predicted universality.

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Zi-Xiang Hu, R. N. Bhatt, Xin Wan, Kun Yang. 2011-09-27. Realizing Universal Edge Properties in Graphene Fractional Quantum Hall Liquids. https://doi.org/10.1103/physrevlett.107.236806

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