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 …

Polaron and conduction band non-parabolicity effects on the binding energy, diamagnetic susceptibility and polarizability of an impurity in quantum rings

K El-Bakkari, A Sali, E Iqraoun, A Ezzarfi - Superlattices and …, 2020 - Elsevier
By employing a variational approach, we have investigated the effect of conduction band
non-parabolicity (NP) on the binding energy (E b) and the susceptibility diamagnetic (χ dia) …

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 …

Impact of electron-LO-phonon correction and donor impurity localization on the linear and nonlinear optical properties in spherical core/shell semiconductor quantum …

S M'zerd, M El Haouari, A Talbi, E Feddi… - Journal of Alloys and …, 2018 - Elsevier
In the present work, the linear, third-order nonlinear and total optical absorption coefficients
as well as relative refractive index change have been calculated in the case of GaAs/AlAs …

Laser-dressed donor states in a CdS/SiO2 spherical nanodot under applied electric fields

EC Niculescu, M Cristea, A Radu - Superlattices and Microstructures, 2014 - Elsevier
Intense laser field effects on the impurity states in a CdS/SiO 2 quantum dot under applied
electric fields are studied within the effective mass approximation by using a finite difference …

Hydrostatic pressure and magnetic field effects on donor states in pyramidal quantum dots

GC Tiriba, EC Niculescu, LM Burileanu - Superlattices and Microstructures, 2014 - Elsevier
The simultaneous effects of the hydrostatic pressure and magnetic field on the ground state
of impurity confined by a GaAs pyramid-shaped QD are investigated within the effective …

Heat flow in InAs/InP heterostructure nanowires

J Matthews, EA Hoffmann, C Weber, A Wacker… - Physical Review B …, 2012 - APS
The transfer of heat between electrons and phonons plays a key role for thermal
management in future nanowire-based devices, but only a few experimental measurements …

Electric field and image charge effects on impurity-bound polarons in a CdS colloidal quantum dot embedded in organic matrices

AL Asatryan, AL Vartanian, AA Kirakosyan… - Physica B: Condensed …, 2016 - Elsevier
An adiabatic variational approach is used to study the ground and first excited states of a
hydrogen-like impurity bound polaron in a colloidal quantum dot (QD) under an external …

Image charge and electric field effects on hydrogen-like impurity-bound polaron energies and oscillator strengths in a quantum dot

LA Vardanyan, AL Vartanian, AL Asatryan… - Journal of Electronic …, 2016 - Springer
Abstract By using Landau–Pekar variational method, the ground and the first excited state
energies and the transition frequencies between the ground and the first excited states of a …

Polaron states in a double quantum ring structure in the presence of electric and magnetic fields

A Shahbandari, MA Yeranosyan… - Superlattices and …, 2013 - Elsevier
In the framework of Landau–Pekar theory, we study the polaron problem in the double
quantum ring structures within theeffectivemassapproximation in the presence of …