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arXiv · 1803.07076

Voltage-induced thin-film superconductivity in high magnetic fields

Jabir Ali Ouassou·Tom Doekle Vethaak·Jacob Linder
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Abstract

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.

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Jabir Ali Ouassou, Tom Doekle Vethaak, Jacob Linder. 2018-03-19. Voltage-induced thin-film superconductivity in high magnetic fields. https://doi.org/10.1103/physrevb.98.144509

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