Exciton g factors of van der Waals heterostructures from first-principles calculations

URN to cite this document:: urn:nbn:de:bvb:355-epub-447069
DOI to cite this document:: 10.5283/epub.44706

Wozniak, Tomasz

; Faria Junior, Paulo E. ; Seifert, Gotthard ; Chaves, Andrey ; Kunstmann, Jens

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Date of publication of this fulltext: 02 Feb 2021 05:50

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Abstract

External fields are a powerful tool to probe optical excitations in a material. The linear energy shift of an excitation in a magnetic field is quantified by its effective g factor. Here we show how exciton g factors and their sign can be determined by converged first-principles calculations. We apply the method to monolayer excitons in semiconducting transition metal dichalcogenides and to ...