Critical exponent for the quantum Hall transition
arXiv:0905.1163 · doi:10.1103/PhysRevB.80.041304
Abstract
We report an estimate of the critical exponent of the Chalker-Coddington model of the integer quantum Hall effect that is significantly larger than previous numerical estimates and in disagreement with experiment. We conclude that models of non-interacting electrons cannot explain the critical phenomena of the integer quantum Hall effect.
4 pages. Final version. Journal reference and DOI added
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