We design, from first principles calculations, a novel family of thallium halide-based compounds as candidates for new high temperature superconductors, whose superconductivity is mediated by the recently proposed mechanism of non-local correlation-enhanced strong electron-phonon coupling. Two prototype compounds namely CsTlF3 and CsTlCl3 are studied with various hole doping levels and volumes. The critical superconducting temperature Tc are predicted to be about 30 K and 20 K with ∼0.35/f.u. hole doping and require only modest pressures (∼10 and ∼2 GPa), respectively. Our procedure of designing this class of superconductors is quite general and can be used to search for other "other high temperature superconductors".
@article{arxiv.1301.7477,
title = {Rational material design of mixed-valent high T$_c$ superconductors},
author = {Z. P. Yin and G. Kotliar},
journal= {arXiv preprint arXiv:1301.7477},
year = {2013}
}