Abstract
We report an estimate [2.587,2.598] 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. This suggests that models of noninteracting electrons cannot explain the critical phenomena of the integer quantum Hall effect.
- Received 13 May 2009
DOI:https://doi.org/10.1103/PhysRevB.80.041304
©2009 American Physical Society
Synopsis
A coincidence of errors
Published 17 August 2009
In integer quantum Hall systems, do theory and experiment agree for the wrong reasons?
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