https://doi.org/10.1140/epjp/s13360-021-01644-0
Regular Article
Effects of electric and magnetic fields on the binding energy and second harmonic generation for on- and off-center donor impurities in spherical multilayer quantum dot
Department of Mathematics and Science Education, Faculty of Education, Yozgat Bozok University, 66200, Yozgat, Turkey
Received:
3
April
2021
Accepted:
4
June
2021
Published online:
17
June
2021
We have calculated the electronic and second-order nonlinear optical properties of spherical multilayer quantum dot layered as GaAs/AlGaAs/GaAs/AlGaAs under external electric and magnetic fields. In numerical calculations, both the on- and off-center impurity cases are considered within the effective mass approximation. The eigenvalues and corresponding eigenfunctions of the system are obtained, using two-dimensional finite difference approach. It is found that the ground-state binding energy and second harmonic generation susceptibility are strongly affected by the potential parameters and the electric and magnetic fields. Furthermore, the electron probability distributions are investigated to understand clearly underlying physical reasons behind the behavior of the binding energy.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
