Ultrafast pseudospin quantum beats in multilayer WSe2 and MoSe2

URN to cite this document:: urn:nbn:de:bvb:355-epub-528263
DOI to cite this document:: 10.5283/epub.52826

Raiber, Simon ; Faria Junior, Paulo E. ; Falter, Dennis ; Feldl, Simon ; Marzena, Petter ; Watanabe, Kenji

; Taniguchi, Takashi ; Fabian, Jaroslav

; Schüller, Christian

License: Creative Commons Attribution 4.0
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Date of publication of this fulltext: 30 Aug 2022 06:21

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Abstract

Here, the authors investigate excitonic transitions in mono- and multi-layer WSe2 and MoSe2 by time-resolved Faraday ellipticity (TRFE) with in-plane magnetic fields, and attribute the oscillatory TRFE signal in the multilayer samples to pseudospin quantum beats of excitons, a manifestation of spin- and pseudospin layer locking. Layered van-der-Waals materials with hexagonal symmetry offer an ...