Static charge-imbalance effects in intrinsic Josephson systems
Superconductivity
2009-11-10 v1
Abstract
Nonequilibrium effects created by stationary current injection in layered d-wave superconductors forming a stack of intrinsic Josephson junctions are studied. Starting from a nonequilibrium Green function theory we derive microscopic expressions for the charge-imbalance (difference between electron- and hole-like quasi-particles) on the superconducting layers and investigate its influence on the quasi-particle current between the layers. This nonequilibrium effect leads to shifts in the current-voltage curves of the stack. The theory is applied to the interpretation of recent current injection experiments in double-mesa structures.
Keywords
Cite
@article{arxiv.cond-mat/0407660,
title = {Static charge-imbalance effects in intrinsic Josephson systems},
author = {J. Keller and D. A. Ryndyk},
journal= {arXiv preprint arXiv:cond-mat/0407660},
year = {2009}
}
Comments
14 pages, 10 figures, submitted to Phys. Rev. B