In a recent article, Karakurt et al. [I. Karakurt et al., Phys. Rev. Lett. 89, 226803 (2002)] reported the absence of compressible regions around antidots in the quantum Hall regime. We wish to point out a significant flaw in their analysis, which invalidates their claim.
@article{arxiv.cond-mat/0404462,
title = {Comment on "Absence of Compressible Edge Channel Rings in Quantum Antidots"},
author = {M. Kataoka and C. J. B. Ford},
journal= {arXiv preprint arXiv:cond-mat/0404462},
year = {2009}
}
Comments
1 page 1 figure, to be published in Phys. Rev. Lett