Moiré phonons in twisted MoSe2–WSe2 heterobilayers and their correlation with interlayer excitons

URN to cite this document:: urn:nbn:de:bvb:355-epub-478541
DOI to cite this document:: 10.5283/epub.47854

Parzefall, Philipp

; Holler, Johannes

; Scheuck, Marten ; Beer, Andreas ; Lin, Kai-Qiang

; Peng, Bo

; Monserrat, Bartomeu

; Nagler, Philipp ; Kempf, Michael ; Korn, Tobias

; Schüller, Christian

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Date of publication of this fulltext: 16 Aug 2021 11:35

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Abstract

We report about the investigation of twisted MoSe2 homo- and MoSe2–WSe2 heterobilayers by means of low-frequency Raman spectroscopy (LFRS) and low-temperature micro photoluminescence (µPL). In room-temperature LFRS experiments on both, twisted MoSe2 homobilayers and twisted MoSe2–WSe2 heterobilayers, we observe moiré phonons, i.e. folded acoustic phonon modes due to the moiré superlattice. In the ...