Instabilities and resistance fluctuations in thin accelerated superconducting rings
Superconductivity
2009-11-07 v2 Statistical Mechanics
Abstract
The non-equilibrium properties of a driven quasi-one dimensional superconducting ring subjected to a constant electromotive force ({\it emf}) is studied. The {\it emf} accelerates the superconducting electrons until the critical current is reached and a dissipative phase slip occurs that lowers the current. The phase slip phenomena is examined as a function of the strength of the {\it emf}, thermal noise, and normal state resistivity. Numerical and analytic methods are used to make detailed predictions for the magnitude of phase slips and subsequent dissipation.
Cite
@article{arxiv.cond-mat/0211278,
title = {Instabilities and resistance fluctuations in thin accelerated superconducting rings},
author = {Mikko Karttunen and K. R. Elder and Martin B. Tarlie and Martin Grant},
journal= {arXiv preprint arXiv:cond-mat/0211278},
year = {2009}
}
Comments
Some movies are available here at http://www.lce.hut.fi/~karttune/SC