Relaxation of Hot Quasiparticles in a d-Wave Superconductor
Superconductivity
2009-11-10 v2 Strongly Correlated Electrons
Abstract
Motivated by recent pump-probe experiments we consider the processes by which "hot" quasiparticles produced near the antinodes of a d-wave superconductor can relax. We show that in a large region of momentum space processes which break Cooper pairs are forbidden by energy and momentum conservation. Equilibration then occurs by scattering with thermal quasiparticles: Umklapp scattering is exponentially suppressed at low temperatures, but small-angle scattering leads to power-law behavior. By solving the Boltzmann equation analytically we make detailed predictions for the temperature and intensity dependence of these processes, which we compare with experiment.
Keywords
Cite
@article{arxiv.cond-mat/0307168,
title = {Relaxation of Hot Quasiparticles in a d-Wave Superconductor},
author = {P. C. Howell and A. Rosch and P. J. Hirschfeld},
journal= {arXiv preprint arXiv:cond-mat/0307168},
year = {2009}
}
Comments
Published version (references updated, minor modifications to text)