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 (3)

• 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

Cited by in corpus (4)

• Quantum and classical mode softening near the charge-density-wave/superconductor transition of Cu${}_x$TiSe${}_2$: Raman spectroscopic studies
• Electronic structure of copper intercalated transition metal dichalcogenides: First-principles calculations
• Anisotropic, Intermediate Coupling Superconductivity in Cu0.03TaS2
• Anomalous metallic state of Cu${}_{0.07}$TiSe${}_2$: an optical spectroscopy study