In this theoretical study, we investigate the origins of the very low thermal conductivity of tin selenide (SnSe) using ab-initio calculations. We obtained high-temperature lattice thermal conductivity values that are close to those of amorphous compounds. We also found a strong anisotropy between the three crystallographic axes: one of the in-plane directions conducts heat much more easily than the other. Our results are compatible with most of the experimental literature on SnSe, and differ markedly from the more isotropic values reported by a recent study.
@article{arxiv.1406.3532,
title = {Low thermal conductivity and triaxial phononic anisotropy of SnSe},
author = {Jesús Carrete and Natalio Mingo and Stefano Curtarolo},
journal= {arXiv preprint arXiv:1406.3532},
year = {2015}
}
Comments
Replaced after changing to a more descriptive title and performing major changes to improve the discussion of our results