Charge density wave and superconductivity in transition metal dichalcogenides

Sudipta Koley (), Narayan Mohanta and Arghya Taraphder
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Sudipta Koley: North Eastern Hill University
Narayan Mohanta: Indian Institute of Technology Kharagpur
Arghya Taraphder: Indian Institute of Technology Kharagpur

The European Physical Journal B: Condensed Matter and Complex Systems, 2020, vol. 93, issue 5, 1-8

Abstract: Abstract 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. Graphical abstract

Date: 2020
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DOI: 10.1140/epjb/e2020-100522-5

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