Josephson-current induced conformational switching of a molecular quantum dot
Superconductivity
2009-11-13 v1 Mesoscale and Nanoscale Physics
Abstract
We discuss the behavior of a two-level system coupled to a quantum dot contacted by superconducting source/drain electrodes, representing a simple model for the conformational degree of freedom of a molecular dot or a break junction. The Josephson current is shown to induce conformational changes, including a complete reversal. For small bias voltage, periodic conformational motions induced by Landau-Zener transitions between Andreev states are predicted.
Keywords
Cite
@article{arxiv.0812.3774,
title = {Josephson-current induced conformational switching of a molecular quantum dot},
author = {A. Zazunov and A. Schulz and R. Egger},
journal= {arXiv preprint arXiv:0812.3774},
year = {2009}
}
Comments
4 pages, 2 figures, accepted to PRL