Hotspot relaxation dynamics in a current-carrying superconductor

Marsili, F. and Stevens, M. J. and Kozorezov, Alexander Georgievich and Lambert, Colin John and Stern, J. A. and Horansky, R. D. and Dyer, S. and Duff, S. and Pappas, D. P. and Lita, A. E. and Shaw, M. D. and Mirin, R. P. and Nam, Sae Woo (2016) Hotspot relaxation dynamics in a current-carrying superconductor. Physical review B, 93 (9): 094518. ISSN 1098-0121

[thumbnail of PhysRevB.93.094518]
PDF (PhysRevB.93.094518)
PhysRevB.93.094518.pdf - Published Version

Download (1MB)


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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
Additional Information:
© 2016 American Physical Society
ID Code:
Deposited By:
Deposited On:
05 Aug 2016 15:32
Last Modified:
31 Dec 2023 00:40