Donor impurity related optical and electronic properties of cylindrical GaAs-AlxGa1−x As quantum dots under tilted electric and magnetic fields

C Heyn, CA Duque - Scientific Reports, 2020 - nature.com
This article makes a theoretical study of the optical and electronic properties in cylindrical
GaAs-Al x Ga1− x As quantum dots in the presence of an arbitrarily located donor impurity …

Donor-impurity related binding energy and photoinization cross-section in quantum dots: electric and magnetic fields and hydrostatic pressure effects

MG Barseghyan, AA Kirakosyan, CA Duque - The European Physical …, 2009 - Springer
We have studied the behavior of the binding energy and photoionization cross-section of a
donor-impurity in cylindrical-shape GaAs-Ga 0.7 Al 0.3 As quantum dots, under the effects of …

The effects of lateral electric field, effective-mass position-dependent, and dimension on the donor-impurity binding energy and electron-impurity distance in GaAs …

I Maouhoubi, R En-nadir, S Maouhoubi… - Physica E: Low …, 2023 - Elsevier
In this paper, the electron-impurity distance and binding energy of a donor-impurity in a
GaAs-based quantum disk have been theoretically investigated. Within the effective-mass …

Effects of an electric field on the binding energy of a donor impurity in a spherical GaAs–(Ga, Al) As quantum dot with parabolic confinement

G Murillo, N Porras‐Montenegro - physica status solidi (b), 2000 - Wiley Online Library
The binding energy of a donor impurity in a spherical GaAs–(Ga, Al) As quantum dot with
parabolic confinement is calculated as a function of the radius of the quantum dot and as a …

The effect of a strong magnetic field on the binding energy and the photoionization process in quantum-well wires

A Sali, M Fliyou, H Satori, H Loumrhari - … of Physics and Chemistry of Solids, 2003 - Elsevier
Within the effective-mass approximation, we have investigated the influence of a strong
magnetic field on the ground state binding energy and the photon energy dependence of the …

Electric field effect in a GaAs/AlAs spherical quantum dot

C Dane, H Akbas, S Minez, A Guleroglu - Physica E: Low-dimensional …, 2008 - Elsevier
Using a variational procedure within the effective-mass approximation we calculate the
binding and normalized binding energy (NEbF) of a shallow donor impurity in a GaAs/AlAs …

Electric field effects on the linear and nonlinear intersubband optical properties of double semi-parabolic quantum wells

MJ Karimi, A Keshavarz - Superlattices and Microstructures, 2011 - Elsevier
In this work, the effects of the electric field on the optical properties of the symmetric and
asymmetric double semi-parabolic quantum wells (DSPQWs) are investigated numerically …

The hydrostatic pressure and electric field effects on the normalized binding energy of hydrogenic impurity in a GaAs/AlAs spherical quantum dot

C Dane, H Akbas, A Guleroglu, S Minez… - Physica E: Low …, 2011 - Elsevier
A theoretical study of combined effects of the hydrostatic pressure and the electric field on
the subband ground state energy and on the normalized ground state binding energy of a …

Hydrostatic pressure, electric and magnetic field effects on shallow donor impurity states and photoionization cross section in cylindrical GaAs–Ga1–x Alx As …

MG Barseghyan, AA Kirakosyan… - physica status solidi …, 2009 - Wiley Online Library
Using the variational method and the effective mass approximation, we have calculated the
influence of applied electric and magnetic fields, both in the axial direction, and hydrostatic …

Magnetic field effect on the polarizability of shallow donor in cylindrical quantum dot

A Zounoubi, I Zorkani, K El Messaoudi, A Jorio - Physics Letters A, 2003 - Elsevier
Using a variational method in the effective mass approximation and considering a
noninteracting model, we have calculated the binding energy and the polarizability of …