Quasi-particle Lifetimes in a d_{x^2-y^2} Superconductor
arXiv:cond-mat/0106169 · doi:10.1103/PhysRevB.64.224522
Abstract
We consider the lifetime of quasi-particles in a d-wave superconductor due to scattering from antiferromagnetic spin-fluctuations, and explicitly separate the contribution from Umklapp processes which determines the electrical conductivity. Results for the temperature dependence of the total scattering rate and the Umklapp scattering rate are compared with relaxation rates obtained from thermal and microwave conductivity measurements, respectively.
14 pages, 4 figures