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

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Wozniak, Tomasz ; Faria Junior, Paulo E. ; Seifert, Gotthard ; Chaves, Andrey ; Kunstmann, Jens
Date of publication of this fulltext: 02 Feb 2021 05:50


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 ...


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