6533b832fe1ef96bd129aeda
RESEARCH PRODUCT
Self-consistent calculation of the flux-flow conductivity in diffusive superconductors
Mikhail SilaevArtjom VarguninArtjom Varguninsubject
PhysicsSuperconductivityCondensed matter physicsta114ScatteringCondensed Matter - SuperconductivitysuperconductivityNon-equilibrium thermodynamicsFOS: Physical sciencesconductivit01 natural sciences010305 fluids & plasmasVortexSuperconductivity (cond-mat.supr-con)Condensed Matter::SuperconductivityKeldysh-Usadel kinetic theory0103 physical sciencesQuasiparticleRelaxation (physics)Diffusion (business)010306 general physicsDimensionless quantitydescription
In the framework of Keldysh-Usadel kinetic theory, we study the temperature dependence of flux-flow conductivity (FFC) in diffusive superconductors. By using self-consistent vortex solutions we find the exact values of dimensionless parameters that determine the diffusion-controlled FFC both in the limit of the low temperatures and close to the critical one. Taking into account the electron-phonon scattering we study the transition between flux-flow regimes controlled either by the diffusion or the inelastic relaxation of non-equilibrium quasiparticles. We demonstrate that the inelastic electron-phonon relaxation leads to the strong suppression of FFC as compared to the previous estimates making it possible to obtain the numerical agreement with experimental results.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-09-05 | Physical Review B |