We predict that superconductivity in thin films can be stabilized in high magnetic fields if the superconductor is driven out of equilibrium by a DC voltage bias. For realistic material parameters and temperatures, we show that superconductivity is restored in fields many times larger than the Chandrasekhar-Clogston limit. After motivating the effect analytically, we perform rigorous numerical calculations to corroborate the findings, and present concrete experimental signatures. On the technical side, we also introduce a new form for the nonequilibrium kinetic equations, which generalizes and simplifies previous formulations of the problem.
@article{arxiv.1803.07076,
title = {Voltage-induced thin-film superconductivity in high magnetic fields},
author = {Jabir Ali Ouassou and Tom Doekle Vethaak and Jacob Linder},
journal= {arXiv preprint arXiv:1803.07076},
year = {2018}
}
Comments
Revised version; 4 pages, 4 figures, supplemental information