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.
2 More- Received 9 June 2015
- Revised 7 January 2016
DOI:https://doi.org/10.1103/PhysRevB.93.094518
©2016 American Physical Society