P. Baser

Sivas Cumhuriyet University · Department of Phycis

In this work, for the first time, the total refractive index (TRICs) and total absorption coefficients (TACs) of In\(_{x}\)Ga\(_{1-x}\)As/GaAs Mathieu quantum dot (MQD) with hydrogenic impurity under the influence of the external electric field and laser field are probed. Within the framework of the Ehlotzky approximation, considering the Kramers–H...

In this work, the total refractive index (TRICs) and total absorption coefficients (TACs) of a spherical quantum dot with the Mathieu potential encompassement, generated by using InxGa1−xAs/GaAs heterostructure, and including hydrogenic impurity in its center, under the influence of the temperature, hydrostatic pressure and external electric field...

In this study, for the first time, the total refractive index changes (TRICs) and total absorption coefficients (TACs) of the quantum dot including the Mathieu potential confinement formed by the InxGa1−xAs/GaAs heterostructure under the influence of external electric and magnetic fields are theoretically investigated. The spectra and eigenfunction...

The on-center shallow-donor impurity binding energy in lattice matched InP/In0.53Ga0.47As square quantum well structure have been theoretically investigated using effective mass and variational techniques. The effects of hydrostatic pressure, temperature and well width has been calculated and the results are discussed.

We have calculated the ground state binding energy using variational methods and the effective mass approximation for the hydrogenic impurity in square quantum well structure made up of GaAs/InGaAs/GaAs epilayers under the action of hydrostatic pressure and temperature for different well widths and barrier heights. The effects of the variation of h...

In this study, the electronic energy levels of GaAs/ InxGa1-xAs/GaAs single square quantum well (SQW) have been analytically calculated. The numerical results have clearly illustrated the electronic energy levels dependency to the SQW structure parameters. Such as, In concentration, the barrier height and the width of the well

We have calculated the binding energy for the ground state of a heavy-hole exciton in GaAs/Ga0.7Al0.3As cylindrical quantum well wires (CQWWs) under the action of a hydrostatic pressure, temperature and magnetic field. The calculations are made using variational methods and the effective mass approximation for a finite confinement potential. The hy...

Within the framework of effective-mass approximation, the binding energy of a hydrogenic donor impurity in zinc-blende (ZB) InxGa1−xN/GaN cylindrical quantum well wires (CQWWs) is investigated using variational procedures. Numerical results show that the ground-state donor binding energy Eb increases when the hydrostatic pressure increases for any...

We have presented the behavior of a shallow donor impurity with binding energy in cylindrical-shaped GaAs/Ga0.7Al0.3As quantum well wires under high hydrostatic pressure values. Our results are obtained in the effective mass approximation using the variational procedures. In our calculations, we have not considered the pressure related Γ−X crossove...

The ground state binding energy of axial hydrogenic impurity in zinc-blende (ZB) In x Ga 1-x N/GaN cylindrical quantum well wires(CQWWs) are investigated as a function of the In concentration and the radius of the wire under hydrostatic pressure in the effective mass approximation and variational calculation scheme. The effect of applied hydrostati...

The effect of hydrostatic pressure and temperature on the ground state binding energy of hydrogenic impurities is investigated in a GaAs/Ga0.7Al0.3As cylindrical quantum well wire as a function of the wire radius. The calculations are performed using a variational procedure within the effective mass approximation for a finite confinement potential...

The ground state binding energy of axial hydrogenic impurity in GaAs/Ga1−xAlxAs cylindrical quantum well wires (CQWWs) are investigated as a function of the barrier height and the radius of the wire under hydrostatic pressure in the effective mass approximation and variational calculation scheme. The effect of applied hydrostatic pressure is introd...

The ground state binding energy dependency of hydrogenic impurities on dielectric constant mismatch is investigated in cylindrical quantum wires as a function of wire radius and alloy concentration. The calculations are done for a cylindrical GaAs/Ga1−xAlxAs system with a uniform external magnetic field applied parallel to the wire axis using the e...

A calculation of the binding energy of an exciton confined in cylindrical quantum wires of GaAs surrounded by (Ga, Al) As in the presence of a uniform magnetic field is reported as a function of wire radius, potential height and magnetic field strength, using effective mass approximation and variational approach techniques. For larger magnetic fiel...

We calculated the magnetic field dependency of hydrogenic donor binding energy in cylindrical quantum wires under inverse lateral parabolic potential. We have worked in the effective mass approximation and variational calculation scheme. We have found there is an abrupt change in binding energy with the magnetic field strength, and the results are...

The ground state binding energies of axial hydrogenic impurities in a coaxial cylindrical quantum well wire are reported as a function of the barrier height and the radius of wire in the presence of a uniform magnetic field applied parallel to the wire axis. The quantum well wire (QWW) is assumed to be an infinitely long cylinder of GaAs material s...