The Stabilization of Superconductivity by Magnetic Field in Out-of-Equilibrium Nanowires

Abstract

A systematic study has been carried out on the previously reported "magnetic-field-induced superconductivity" of Zn nanowires. By varying parameters such as magnetic field orientation and wire length, the results provide evidence that the phenomenon is a nonequilibrium effect associated with the boundary electrodes. They also suggest there are two length scales involved, the superconducting coherence length and quasiparticle relaxation length. As wire lengths approach either of these length scales, the effect weakens. We demonstrate that it is appropriate to consider the effect to be a stabilization of superconductivity, that has been suppressed by an applied current.

(Updated Version) 9 pages, 8 figures

References in corpus (3)

• Negative magnetoresistance of ultra-narrow superconducting nanowires in the resistive state
• Negative magnetoresistance and phase slip process in superconducting nanowires
• Stabilizing Superconductivity in Nanowires by Coupling to Dissipative Environments

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• Electronic transport properties of topological insulator films and low dimensional superconductors
• Anti-proximity Effect in Aluminum Nanowires
• Enhancement of the retrapping current of superconducting microbridges of finite length
• Nonequilibrium noise and current fluctuations at the superconducting phase transition