Charge Density Wave and Superconductivity in Transition Metal Dichalcogenides

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.

References in corpus (14)

• Fermi surface nesting and the origin of Charge Density Waves in metals
• Defects in correlated metals and superconductors
• Two energy gaps and Fermi surface 'arcs' in NbSe2
• Disorder-induced topological change of the superconducting gap structure in iron pnictides
• Charge-Density-Wave induced modifications to the quasiparticle self-energy in 2H TaSe2
• Superconducting Puddles and "Colossal'' Effects in Underdoped Cuprates
• Disorder in a Quantum Critical Superconductor
• Preformed Excitons, Orbital Selectivity, and Charge-Density-Wave Order in 1T-TiSe_2
• The Exotic Barium Bismuthates
• Preformed excitonic liquid route to a charge density wave in 2H-TaSe${}_2$
• k-resolved susceptibility function of 2H-TaSe2 from angle-resolved photoemission
• Pressure Driven Phase Transition in 1T-TiSe${}_2$ , a MOIPT+DMFT Study
• Pairing in disordered s-wave superconductors and the effect of their coupling
• Competition between superconductivity and charge density waves

Cited by in corpus (5)

• Theoretical study on spintronic and optical property prediction of doped magnetic Borophene
• Electron-phonon coupling, critical temperatures and gaps in $\mathrm{NbS}{\mathrm{e}}_2$/$\mathrm{Mo}{\mathrm{S}}_2$ Ising Superconductors
• Electronic spectral function in fractionalized Pair Density Wave scenario
• Enhanced superconductivity with possible re-appearance of charge density wave states in polycrystalline Cu${}_{1-x}$Ag${}_x$Ir${}_2$Te${}_4$ alloys
• Time-Resolved Photoemission Spectroscopy of Quantum Materials Using High Harmonic Generation: Probing Electron-Phonon Interactions and Non-Equilibrium Dynamics