Aharonov-Bohm oscillations in disordered nanorings with quantum dots: Effect of electron-electron interactions
Mesoscale and Nanoscale Physics
2010-02-16 v2
Abstract
We investigate the effect of electron-electron interactions on Aharonov-Bohm (AB) current oscillations in nanorings formed by a chain of metallic quantum dots. We demonstrate that electron-electron interactions cause electron dephasing thereby suppressing the amplitude of AB oscillations at all temperatures down to T=0. The crossover between thermal and quantum dephasing is found to be controlled by the ring perimeter. Our predictions can be directly tested in future experiments.
Cite
@article{arxiv.0905.2045,
title = {Aharonov-Bohm oscillations in disordered nanorings with quantum dots: Effect of electron-electron interactions},
author = {Andrew G. Semenov and Andrei D. Zaikin},
journal= {arXiv preprint arXiv:0905.2045},
year = {2010}
}
Comments
9 pages, 4 figures. To be published in the Proceedings of FQMT08 Conference (Prague 2008), Physica E