Experimental investigation of flux motion in exponentially shaped Josephson junctions
Superconductivity
2009-11-07 v1
Abstract
We report experimental and numerical analysis of expontentially shaped long Josephson junctions with lateral current injection. Quasi-linear flux flow branches are observed in the current-voltage characteristic of the junctions in the absence of magnetic field. A strongly asymmetric response to an applied magnetic field is also exhibited by the junctions. Experimental data are found in agreement with numerical predictions and demonstrate the existence of a geometry-induced potential experienced by the flux quanta in nonuniform width junctions.
Keywords
Cite
@article{arxiv.cond-mat/0203055,
title = {Experimental investigation of flux motion in exponentially shaped Josephson junctions},
author = {G. Carapella and N. Martucciello and G. Costabile},
journal= {arXiv preprint arXiv:cond-mat/0203055},
year = {2009}
}
Comments
16 pg, 8 figures, Submitted in PRB March 4