Superconducting Single-Electron Transistor in a Locally Tunable Electromagnetic Environment: Dissipation and Charge Fluctuations
Mesoscale and Nanoscale Physics
2007-05-23 v1 Superconductivity
Abstract
We have developed a novel system consisting of a superconducting single-electron transistor (S-SET) coupled to a two-dimensional electron gas (2DEG), for which the dissipation can be tuned in the immediate vicinity of the S-SET. Within linear response, the S-SET conductance varies nonmonotonically with increasing 2DEG impedance. We find good agreement between our experimental results and a model incorporating electromagnetic fluctuations in both the S-SET leads and the 2DEG, as well as low-frequency switching of the S-SET offset charge.
Keywords
Cite
@article{arxiv.cond-mat/0204287,
title = {Superconducting Single-Electron Transistor in a Locally Tunable Electromagnetic Environment: Dissipation and Charge Fluctuations},
author = {W. Lu and K. D. Maranowski and A. J. Rimberg},
journal= {arXiv preprint arXiv:cond-mat/0204287},
year = {2007}
}