Larger than 80$\,$% Valley Polarization of Free Carriers in Singly-Oriented Single Layer WS$_2$ on Au(111)

• Main Authors: Beyer, H, Rohde, G, Čabo, A. Grubišić, Stange, A, Jacobsen, T, Bignardi, L, Lizzit, D, Lacovig, P, Sanders, C. E, Lizzit, S, Rossnagel, K, Hofmann, P, Bauer, M
• Format: Journal Article
• Language: English
• Published: 24.07.2019
• Subjects: Physics - Materials Science

Phys. Rev. Lett. 123, 236802 (2019) We employ time- and angle-resolved photoemission spectroscopy to study the spin- and valley-selective photoexcitation and dynamics of free carriers at the K and K' points in singly-oriented single layer WS$_2$/Au(111). Our results reveal that in the valence b...