Weak-Localization in Chaotic Versus Non-Chaotic Cavities: A Striking Difference in the Line Shape
Condensed Matter
2009-10-22 v1
Abstract
We report experimental evidence that chaotic and non-chaotic scattering through ballistic cavities display distinct signatures in quantum transport. In the case of non-chaotic cavities, we observe a linear decrease in the average resistance with magnetic field which contrasts markedly with a Lorentzian behavior for a chaotic cavity. This difference in line-shape of the weak-localization peak is related to the differing distribution of areas enclosed by electron trajectories. In addition, periodic oscillations are observed which are probably associated with the Aharonov-Bohm effect through a periodic orbit within the cavities.
Keywords
Cite
@article{arxiv.cond-mat/9405077,
title = {Weak-Localization in Chaotic Versus Non-Chaotic Cavities: A Striking Difference in the Line Shape},
author = {A. M. Chang and H. U. Baranger and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:cond-mat/9405077},
year = {2009}
}
Comments
4 pages revtex + 4 figures on request; amc.hub.94.1