Microwave-Induced Dephasing in One-Dimensional Metal Wires
Abstract
We report on the effect of monochromatic microwave (MW) radiation on the weak localization corrections to the conductivity of quasi-one-dimensional (1D) silver wires. Due to the improved electron cooling in the wires, the MW-induced dephasing was observed without a concomitant overheating of electrons over wide ranges of the MW power and frequency . The observed dependences of the conductivity and MW-induced dephasing rate on and are in agreement with the theory by Altshuler, Aronov, and Khmelnitsky \cite{Alt81}. Our results suggest that in the low-temperature experiments with 1D wires, saturation of the temperature dependence of the dephasing time can be caused by an MW electromagnetic noise with a sub-pW power.
Cite
@article{arxiv.cond-mat/0508208,
title = {Microwave-Induced Dephasing in One-Dimensional Metal Wires},
author = {J. Wei and S. Pereverzev and M. E. Gershenson},
journal= {arXiv preprint arXiv:cond-mat/0508208},
year = {2009}
}
Comments
4 pages with 4 figures, paper revised, accepted by Phys Rev Lett