Abstract
We consider the real part of the conductivity, arising from classical phase fluctuations in high- superconductors. We show that below the superconducting transition temperature provided there is some quenched disorder in the system. Furthermore, for a fixed amount of quenched disorder, this integral at low temperatures is proportional to the zero-temperature superfluid density, in agreement with experiment. We calculate explicitly for a model of overdamped phase fluctuations.
- Received 22 February 2000
DOI:https://doi.org/10.1103/PhysRevB.61.R14924
©2000 American Physical Society