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

Autor:	Li, Weijian, Naik, Gururaj V.
Rok vydání:	2020
Předmět:	Condensed Matter - Materials Science Physics - Applied Physics Physics - Optics
Druh dokumentu:	Working Paper
DOI:	10.1021/acs.nanolett.0c02234
Popis:	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. Comment: 16 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2006.02365 Zobrazit plný text záznamu View this record from Arxiv