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Excitonic Stark effect in MoS2 monolayers

Scharf, Benedikt ; Frank, Tobias ; Gmitra, Martin ; Fabian, Jaroslav ; Žutić, Igor ; Perebeinos, Vasili



Abstract

We theoretically investigate excitons in MoS2 monolayers in an applied in-plane electric field. Tight-binding and Bethe-Salpeter equation calculations predict a quadratic Stark shift, of the order of a few meV for fields of 10 V/mu m, in the linear absorption spectra. The spectral weight of the main exciton peaks decreases by a few percent with an increasing electric field due to the exciton ...

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