The first study of thermal conductivity, κ, in a quasi-two-dimensional organic superconductor of the κ-(BEDT-TTF)2X family reveals features analogous to those already observed in the cuprates. The onset of superconductivity is associated with a sudden increase in κ which can be suppressed by the application of a moderate magnetic field. At low temperatures, a finite linear term - due to a residual electronic contribution- was resolved. The magnitude of this term is close to what is predicted by the theory of transport in unconventional superconductors.
@article{arxiv.cond-mat/9805354,
title = {Heat Conduction in $\kappa$-(BEDT-TTF)$_2$Cu(NCS)$_2$},
author = {S. Belin and K. Behnia and A. Deluzet},
journal= {arXiv preprint arXiv:cond-mat/9805354},
year = {2009}
}