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arXiv:0905.2045 [cond-mat.mes-hall]AbstractReferencesReviewsResources

Aharonov-Bohm oscillations in disordered nanorings with quantum dots: Effect of electron-electron interactions

Andrew G. Semenov, Andrei D. Zaikin

Published 2009-05-13, updated 2009-05-15Version 2

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.

Comments: 9 pages, 4 figures. To be published in the Proceedings of FQMT08 Conference (Prague 2008), Physica E
Journal: Physica E, vol 42, page 600 (2010)
Categories: cond-mat.mes-hall
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