Superconductivity in charge Kondo systems
Strongly Correlated Electrons
2013-07-10 v3 Superconductivity
Abstract
We present a theory of superconductivity in charge Kondo systems, materials with resonant quantum valence fluctuations, in the regime where the transition temperature is comparable to the charge Kondo resonance. We find superconductivity induced by charge Kondo impurities, study how pairing of a superconducting host is enhanced due to charge Kondo centers and investigate the interplay between Kondo-scattering and inter-impurity Josephson coupling. We discuss the implications of our theory for Tl-doped PbTe, which has recently been identified as a candidate charge Kondo system.
Cite
@article{arxiv.cond-mat/0409171,
title = {Superconductivity in charge Kondo systems},
author = {Maxim Dzero and Joerg Schmalian},
journal= {arXiv preprint arXiv:cond-mat/0409171},
year = {2013}
}
Comments
4 pages, 4 figures; revised version; detailed discussion on the physics of Tl-doped PbTe added