A new type of quantum size effect (QSE) oscillations is predicted for films with a relatively large correlation radius of surface inhomogeneities. The effect replaces usual QSE for random inhomogeneities with Gaussian and exponential power spectra. The well-pronounced oscillations of conductivity σ as a function of channel width L separate two distinct regions with different indices in the power-law dependence σ(L). The oscillations are explained and their positions identified. The effect is reminiscent of magnetic breakthrough and can simplify observation of QSE in metals.
@article{arxiv.cond-mat/0103236,
title = {New type of conductivity oscillations in quantized films with rough walls},
author = {A. E. Meyerovich and I. V. Ponomarev},
journal= {arXiv preprint arXiv:cond-mat/0103236},
year = {2016}
}