Large optical tunability from charge density waves in 1T-TaS${}_2$ under incoherent illumination

Abstract

Strongly correlated materials possess a complex energy landscape and host many interesting physical phenomena, including charge density waves (CDWs). CDWs have been observed and extensively studied in many materials since their first discovery in 1972. Yet, they present ample opportunities for discovery. Here, we report a large tunability in the optical response of a quasi-2D CDW material, 1T-TaS${}_2$, upon incoherent light illumination at room temperature. We show that the observed tunability is a consequence of light-induced rearrangement of CDW stacking across the layers of 1T-TaS${}_2$. Our model, based on this hypothesis, agrees reasonably well with experiments suggesting that the interdomain CDW interaction is a vital knob to control the phase of strongly correlated materials.

arXiv comment16 pages, 4 figures

References in corpus (19)

• Gate-tunable Phase Transitions in 1T-TaS${}_2$
• Ultrafast photo-magnetic recording in transparent medium
• Memristive phase switching in two-dimensional crystals
• Orbital textures and charge density waves in transition metal dichalcogenides
• A metallic mosaic phase and the origin of Mott insulating state in 1T-TaS2
• Structure and Control of Charge Density Waves in Two-Dimensional 1T-TaS2
• Disrupted orbital order and the pseudo-gap in layered 1T-TaS${}_2$
• Atomic Lattice Disorder in Charge Density Wave Phases of Exfoliated Dichalcogenides (1T-TaS2)
• Collapse of layer dimerization in the photo-induced hidden state of 1T-TaS2
• Fe-doping induced superconductivity in charge-density-wave system 1T-TaS2
• Watching the birth of a charge density wave order: diffraction study on nanometer-and picosecond-scales
• Electric Switching of the Charge-Density-Wave and Normal Metallic Phases in Tantalum Disulfide Thin-Film Devices
• A light induced metastable magnetic texture uncovered by in-situ Lorentz microscopy
• Total Ionizing Dose Effects on Threshold Switching in 1T-Tantalum Disulfide Charge-Density-Wave Devices
• Laser-induced topological superconductivity in cuprate thin films
• Proton-Irradiation-Immune Electronics Implemented with Two-Dimensional Charge-Density-Wave Devices
• Stacking order dynamic in the quasi-two-dimensional dichalcogenide 1T-TaS${}_2$ probed with MeV ultrafast electron diffraction
• Broadband THz spectroscopy of the insulator-metal transition driven by coherent lattice deformation at the SmNiO3/LaAlO3 interface
• Current Oscillations in Quasi-2D Charge-Density-Wave 1T-TaS2 Devices: Revisiting the "Narrow Band Noise" Concept

Cited by in corpus (5)

• Distinguishing and controlling Mottness in 1T-TaS${}_2$ by ultrafast light
• Charge-Density Wave Driven Giant Thermionic-Current Switching in 1T-TaS${}_2$/2H-TaSe${}_2$/2H-MoS${}_2$ Heterostructure
• Topical review: the nature of the ground state and possibility of a quantum spin liquid in 1T metal dichalcogenides
• Giant Optomechanical Coupling in the Charge Density Wave State of Tantalum Disulfide
• Non-local optical response of a multi-phased quantum material