Optical conductivity in non-equilibrium d-wave superconductors
arXiv:cond-mat/0406516 · doi:10.1103/PhysRevB.70.014517
Abstract
We consider the optical conductivity of a d-wave BCS superconductor in the presence of a non-equilibrium distribution of excess quasiparticles. Two different simplified models used in the past for the s-wave case are considered and results compared. In the -model of Parker the excess quasiparticles are assumed to be in a thermal distribution at some temperature larger than the equilibrium sample temperature. In the - model of Owen and Scalapino a chemical potential is introduced to accommodate the excess quasiparticles. Some of the results obtained are specific to the model, most are qualitatively similar in both.
11 pages, 6 figures this manuscript has been accepted for publication in abbreviated form by Physical Review B
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