Charge-imbalance effects in intrinsic Josephson systems
Abstract
We report on two types of experiments with intrinsic Josephson systems made from layered superconductors which show clear evidence of nonequilibrium effects: 1. In 2-point measurements of IV-curves in the presence of high- frequency radiation a shift of the voltage of Shapiro steps from the canonical value hf/(2e) has been observed. 2. In the IV-curves of double-mesa structures an influence of the current through one mesa on the voltage measured on the other mesa is detected. Both effects can be explained by charge-imbalance on the superconducting layers produced by the quasi-particle current, and can be described successfully by a recently developed theory of nonequilibrium effects in intrinsic Josephson systems.
Keywords
Cite
@article{arxiv.cond-mat/0207634,
title = {Charge-imbalance effects in intrinsic Josephson systems},
author = {S. Rother and Y. Koval and P. Muller and R. Kleiner and D. A. Ryndyk and J. Keller and C. Helm},
journal= {arXiv preprint arXiv:cond-mat/0207634},
year = {2009}
}
Comments
8pages, 9figures, submitted to Phys. Rev. B