Design for the Detection of the Singly-Connected Superconducting State
Superconductivity
2009-10-28 v1
Abstract
We study the Little-Parks effect for mesoscopic loops with very nonuniform thickness. The results follow the trend of the phase diagram obtained for almost uniform thickness. In particular, the singly-connected state is stable on a line segment delimited by two critical points. Most of this study considers loops with piecewise constant thickness; in this case the Euler-Lagrange equation can be integrated analytically. Under appropriate conditions, the temperature range where the singly-connected state is stable is proportional to the square of the ratio between the maximal and the minimal thicknesses. Our results may serve as a guide for planning experiments.
Keywords
Cite
@article{arxiv.cond-mat/9612141,
title = {Design for the Detection of the Singly-Connected Superconducting State},
author = {Jorge Berger and Jacob Rubinstein},
journal= {arXiv preprint arXiv:cond-mat/9612141},
year = {2009}
}
Comments
Revtex, 8 pages, 10 scanned figures