Quasiparticle thermal conductivity in the vortex state of high-T$_c$ cuprates
arXiv:cond-mat/9904077 · doi:10.1103/PhysRevLett.83.4626
Abstract
We present the results of a microscopic calculation of the longitudinal thermal conductivity, $κ$, of a d-wave superconductor in the mixed state. Our results show an increase in the thermal conductivity with the applied field at low temperatures, and a decrease followed by a nearly field independent $κ(H)$ at higher temperatures, in qualitative agreement with the experimental results. We discuss the relationship between the slope of the superconducting gap and the plateau in $κ(H)$.
4 pages, 3 figures, very minor changes to text, published version