학술논문
Using Ultrafast Photocurrents to Manipulate Electronic Symmetry in the Weyl Semimetal TaAs
Document Type
Conference
Author
Source
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) Infrared, Millimeter and Terahertz Waves (IRMMW-THz),2022 47th International Conference on. :1-1 Aug, 2022
Subject
Language
ISSN
2162-2035
Abstract
Topological semimetals are sensitive to a breaking and restoring of symmetry, which affect both bulk and surface electronic states. Using terahertz emission and second harmonic generation spectroscopy as sensitive probes for symmetry change, we observe an all-electronic mechanism of photoinduced symmetry breaking rooted in photocurrent generation.