Berlin 2024 – scientific programme
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O: Fachverband Oberflächenphysik
O 29: Poster: 2D Materials
O 29.14: Poster
Tuesday, March 19, 2024, 12:30–14:30, Poster A
Floquet Engineering in TMDs using short pulsed lasers — •Alejandro Sebastián Gómez1, Yuriko Baba2, Rafael A. Molina1, and Francisco Domínguez-Adame3 — 1Instituto de Estructura de la Materia, IEM-CSIC, Madrid, Spain — 2Universidad Autónoma de Madrid, Madrid, Spain — 3GISC, Universidad Complutense de Madrid, Madrid, Spain
This work focuses on the use of pulsed lasers to manipulate certain properties of Transition Metal Dichalcogenides (TMDs), a type of two-dimensional material [1] . For this purpose, the well-known method of Floquet engineering is employed, capable of describing quantum systems with a perfectly periodic driven external field. The aim is to understand how effectively Floquet theory can be applied to non-periodic pulses such as those in pulsed lasers. To achieve this, the we employ the t-t' formalism technique [2], offering an interesting method for analyzing short pulses.
[1] Liu, G. B., Xiao, D., Yao, Y., Xu, X., & Yao, W. (2015). Electronic structures and theoretical modelling of two-dimensional group-VIB transition metal dichalcogenides. Chemical Society Reviews, 44(9), 2643-2663. [2] Ikeda, T. N., Tanaka, S., & Kayanuma, Y. (2022). Floquet-Landau-Zener interferometry: Usefulness of the Floquet theory in pulse-laser-driven systems. Physical Review Research, 4(3), 033075.
Keywords: Floquet engineering; Transition Metal Dichalcogenides (TMDs); Pulsed Laser Fields; t-t' Formalism; 2D Materials