Realizing universal edge properties in graphene fractional quantum hall liquids

Zi Xiang Hu, R. N. Bhatt, Xin Wan, Kun Yang

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

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.

Original languageEnglish (US)
Article number236806
JournalPhysical review letters
Volume107
Issue number23
DOIs
StatePublished - Dec 1 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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