Electronic and Structural Fingerprints of Charge-Density-Wave Excitations in Extreme Ultraviolet Transient Absorption Spectroscopy
Tobias Heinrich, Hung-Tzu Chang, Sergey Zayko, Kai Roßnagel, Murat Sivis, Claus Ropers
Abstract
Measurements of titanium diselenide differentiate between the material's optical phonons and charge-density-wave excitations, showing the use of tabletop extreme ultraviolet spectroscopy to probe charge-density-wave dynamics.
Topics & Concepts
SpectroscopyUltrafast laser spectroscopyMaterials scienceExtreme ultravioletPhononCharge density waveCharge (physics)Atomic physicsAbsorption spectroscopyCharge densityMolecular physicsAbsorption (acoustics)UltravioletOptoelectronicsPhysicsLaserOpticsCondensed matter physicsSuperconductivityQuantum mechanicsComposite materialOrganic and Molecular Conductors ResearchChalcogenide Semiconductor Thin FilmsSolid-state spectroscopy and crystallography