Keith Slevin, Tomi Ohtsuki
Published 2009-05-08, updated 2009-07-27Version 4
We report an estimate $\nu = 2.593$ $[ {2.587,2.598} ]$ 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. We conclude that models of non-interacting electrons cannot explain the critical phenomena of the integer quantum Hall effect.
Comments: 4 pages. Final version. Journal reference and DOI added
Journal: Phys. Rev. B 80, 041304(R) (2009)
Spin-flip scattering at quantum Hall transition
Frequency dependent conductivity in the integer quantum Hall effect
The critical exponent of the localization length at the Anderson transition in 3D disordered systems is larger than 1
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