Semiconductors

Magneto-Stark effect influence on intensity of exciton-light coupling for excitonic states with large wave vector

D. K. Loginov^a, A. V. Donets<sup>b

a</sup> Spin optics laboratory, Saint-Petersburg State University, St. Petersburg, Russia
^b Saint Petersburg State University, St. Petersburg, Russia

Abstract: The modification in exciton-light coupling due to the magneto-Stark effect is considered for excitonic states with a wave vector which is an order of magnitude greater than the wave vector of light. It is shown that the magnetic field affects on the relative motion of an electron and a hole in a moving exciton as an effective electric field in a potential well with an asymmetric parabolic profile. The asymmetry of this profile at large wave vectors leads to a nonmonotonic dependence of the strentgh of exciton-light coupling on the magnetic field.

Keywords: exciton, magnetic field, Magneto-Stark effect, exciton-light coupling.

Received: 27.10.2023
Revised: 27.10.2023
Accepted: 07.12.2023

DOI: 10.61011/FTT.2024.01.56933.242

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