https://doi.org/10.1140/epjp/s13360-024-05421-7
Regular Article
Electric field-induced electronic structure and intersubband transitions of a hydrogen molecular ion in a gaussian-type quantum ring
1
Physics Department, Faculty of Science, Dokuz Eylül University, 35390, Izmir, Turkey
2
Department of Mathematics and Natural Science Education, Faculty of Education, Sivas Cumhuriyet University, 58140, Sivas, Turkey
Received:
28
February
2024
Accepted:
2
July
2024
Published online:
15
July
2024
In this work, the influence of an external electric field on the electronic structure and intersubband transitions of a singly ionized double-donor system in a GaAs quantum ring defined by Gaussian-type potentials is investigated theoretically. Within the framework of the effective mass approach, the two-dimensional diagonalization method is used for the solution of the Schrödinger equation to obtain the eigen energies and corresponding wave functions. Numerical results reveal that the electronic energy spectrum and the linear optical absorption coefficient of the ring are remarkably affected by the strength of the lateral electric field, internuclear distance and parameters defining the confinement potential. Also, it has been shown that beyond the anti-crossing point, the wave functions exchange their symmetries without mixing, which is a characteristic feature of energy-level anti-crossing.
© The Author(s) 2024
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