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  • PhysRevB.93.094518

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Hotspot relaxation dynamics in a current-carrying superconductor

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Article number094518
<mark>Journal publication date</mark>17/03/2016
<mark>Journal</mark>Physical review B
Issue number9
Volume93
Number of pages10
Publication statusPublished
Original languageEnglish

Abstract

We experimentally studied the dynamics of optically excited hotspots in current-carrying WSi superconducting nanowires as a function of bias current, bath temperature, and excitation wavelength. We observed that the hotspot relaxation time depends on bias current, temperature, and wavelength. We explained this effect with a model based on quasiparticle recombination, which provides insight into the quasiparticle dynamics of superconductors. © 2016 American Physical Society.

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© 2016 American Physical Society