Strain control of exciton and trion spin-valley dynamics in monolayer transition metal dichalcogenides

URN to cite this document:: urn:nbn:de:bvb:355-epub-763883
DOI to cite this document:: 10.5283/epub.76388

An, Z ; Soubelet, P ; Zhumagulov, Yaroslav V.

; Zopf, M ; Delhomme, A ; Qian, C ; Faria Junior, Paulo E.

; Fabian, Jaroslav

; Cao, X ; Yang, J ; Stier, Andreas V. ; Ding, F ; Finley, J. J.

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Date of publication of this fulltext: 20 Mar 2025 17:20

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Abstract

The electron-hole exchange interaction is a fundamental mechanism that drives valley depolarization via intervalley exciton hopping in semiconductor multivalley systems. Here, we report polarization-resolved photoluminescence spectroscopy of neutral excitons and negatively charged trions in monolayer MoSe2 and WSe2 under biaxial strain. We observe a marked enhancement (reduction) on the WSe2 ...