Competing orders in condensed matter give rise to the emergence of fascinating, new phenomena. Here, we investigate the competition between superconductivity and charge density wave in the context of layered-metallic compounds, transition metal dichalcogenides, in which the superconducting state is usually suppressed by the charge density wave. We show, using real-space self-consistent Bogoliubov-de Gennes calculations and momentum-space calculations involving density-functional theory and dynamical mean-field theory, that there is a surprising reappearance of superconductivity in the presence of non-magnetic disorder fluctuations, as observed in recent experiments.
@article{arxiv.1910.12801,
title = {Charge Density Wave and Superconductivity in Transition Metal Dichalcogenides},
author = {S. Koley and N. Mohanta and A. Taraphder},
journal= {arXiv preprint arXiv:1910.12801},
year = {2020}
}