Quasiparticle thermal conductivity in the vortex state of high-Tc cuprates
I. Vekhter, A. Houghton
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).
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