Email this article Stages of the Excitation Relaxation in a Superconductor after the Impact of a Femtosecond Laser Pulse Taking into Account the Momentum Distribution of Quasiparticles
- Authors: Kartsev P.F.1, Kuznetsov I.O.1,2
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Affiliations:
- National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
- Dollezhal Scientific Research and Design Institute of Power Engineering
- Issue: Vol 82, No 11 (2019)
- Pages: 1565-1570
- Section: Interaction of Plasmas, Particle Beams, and Radiation with Matter
- URL: https://journal-vniispk.ru/1063-7788/article/view/195888
- DOI: https://doi.org/10.1134/S106377881911005X
- ID: 195888
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Abstract
A theoretical model is formulated for the description of the nonequilibrium state of a superconductor on the basis of the nonequilibrium distribution function of phonons and quasiparticles on a finite momentum lattice convenient for numerical simulation. The simulation is performed under conditions of pulsed optical impact demonstrating the role of excess quasiparticles in suppressing the order parameter and the main stages of the relaxation process in the absence of electric current.
About the authors
P. F. Kartsev
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Author for correspondence.
Email: PFKartsev@mephi.ru
Russian Federation, Moscow, 115409
I. O. Kuznetsov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Dollezhal Scientific Research and Design Institute of Power Engineering
Email: PFKartsev@mephi.ru
Russian Federation, Moscow, 115409; Moscow, 107140
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