Evolution of the Electronic Structure of 1T-CuxTiSe2

Abstract

The electronic structure of a new charge-density-wave/ superconductor system, 1T-CuxTiSe2, has been studied by photoemission spectroscopy. A correlated semiconductor band structure is revealed for the undoped case. With Cu doping, the charge density wave is suppressed by the raising of the chemical potential, while the superconductivity is enhanced by the enhancement of the density of states. Moreover, the strong scattering at high doping might be responsible for the suppression of superconductivity in that regime.

5 pages, 4 figures

References in corpus (7)

• Complexity in Strongly Correlated Electronic Systems
• Superconductivity in Cu_xTiSe_2
• CDW, Superconductivity and Anomalous Metallic Behavior in 2D Transition Metal Dichalcogenides
• Quasi-Particle Spectra, Charge-Density-Wave, Superconductivity and Electron-Phonon Coupling in 2H-NbSe2
• Semimetal to semimetal charge density wave transition in 1T-TiSe${}_2$
• Emergence of Fermi pockets in an excitonic CDW melted novel superconductor
• Remnant Fermi surface in the presence of an underlying instability in layered 1T-TaS_2

Cited by in corpus (43)

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• Exciton-phonon cooperative mechanism of the triple-$q$ charge-density-wave and antiferroelectric electron polarization in TiSe${}_2$
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• Coexistence of resistance oscillations and the anomalous metal phase in a lithium intercalated TiSe${}_2$ superconductor
• Electronic structure of copper intercalated transition metal dichalcogenides: First-principles calculations
• Superconductivity and hybrid soft modes in TiSe${}_2$
• First-principles study of superconductivity in 2D and 3D forms of PbTiSe${}_2$: Suppressed charge density wave in 1\emph{T}-TiSe${}_2$
• Structural phase transition induced by van Hove singularity in 5d transition metal compound IrTe2
• Charge Transfer Effects in Naturally Occurring van der Waals Heterostructures (PbSe)1.16(TiSe2)m (m=1, 2)
• Effect of Cu intercalation and pressure on excitonic interaction in 1T-TiSe2
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• Energy-dependent spatial texturing of the charge order in $1T$-Cu${}_x$TiSe${}_2$
• Unveiling the Charge Density Wave Inhomogeneity and Pseudogap State in 1T-TiSe2
• Phase Separation in the Vicinity of Fermi Surface Hot Spots
• Superconductivity at 5.2 K in ZrTe3 polycrystals and the effect of Cu, Ag intercalation
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• Anisotropic, Intermediate Coupling Superconductivity in Cu0.03TaS2
• Ultrafast creation of a light induced semimetallic state in strongly excited 1T-TiSe${}_2$
• Electron correlations rule the phonon-driven instability in single layer TiSe${}_2$
• Anomalous metallic state of Cu${}_{0.07}$TiSe${}_2$: an optical spectroscopy study
• Direct observation of strain-induced orbital valence band splitting in HfSe${}_2$ by sodium intercalation
• Pressure Driven Phase Transition in 1T-TiSe${}_2$ , a MOIPT+DMFT Study
• Excitonic Order and Superconductivity in the Two-Orbital Hubbard Model: Variational Cluster Approach
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• Carrier-Density Control of the Quantum-Confined 1$T$-TiSe${}_2$ Charge-Density-Wave
• Point-contact tunneling spectroscopy measurement of Cu${}_x$TiSe${}_2$: disorder-enhanced Coulomb effects
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• Prediction of topological superconductivity in 1$T$-TiTe${}_2$ under pressure
• Spectroscopic fingerprints of many-body renormalizations in$1T$-TiSe${}_2$
• The maximal superconductivity in proximity to charge density wave quantum critical point in Cu${}_x$TiSe${}_2$
• Electron-Doping Induced Semiconductor to Metal Transitions in ZrSe2 Layers via Copper Atomic Intercalation
• The excitonic insulator route through a dynamical phase transition induced by an optical pulse
• ${}^{77}$Se and ${}^{63}$Cu NMR studies of the electronic correlations in Cu${}_x$TiSe${}_2$ ($x=0.05,0.07$)
• Incommensurate charge density wave on multiband intermetallic systems exhibiting competing orders
• Superconducting gap and its Little-Parks like oscillations with high-order harmonics in lithium intercalated 1T-TiSe${}_2$
• Superconducting Order from Disorder in 2H-TaSe${}_{2-x}$S${}_x$ (0$\le$x$\le$2)