https://doi.org/10.1140/epjp/s13360-024-05064-8
Regular Article
Molecular complex states and intersubband transitions in a quantum ring under Gaussian repulsive potential
1
Department of Mathematics and Natural Science Education, Faculty of Education, Sivas Cumhuriyet University, Cumhuriyet University, 58140, Sivas, Turkey
2
Physics Department, Faculty of Science, Dokuz Eylül University, 35390, İzmir, Turkey
Received:
30
December
2023
Accepted:
5
March
2024
Published online:
13
March
2024
In this work, the electronic structure and intersubband transitions of a singly ionized double-donor system in a GaAs quantum ring defined by a Gaussian-type potentials are investigated theoretically. Within the framework of the effective mass approach, energy spectrum and corresponding wave functions are obtained from the solution of the Schrödinger equation by using the two-dimensional diagonalization method. The results show that the energy spectrum and optical absorption coefficient of the ring are affected significantly by the parameters defining the confinement potential and internuclear distance. In general, we conclude that the structural parameters of quantum rings and the configuration of donor atoms can be used as tunability parameter for the electronic structure and optical response of quantum ring systems with molecular complexes.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
