منابع مشابه
Hydrogenic Impurity in Ridge Quantum Wire
The binding energies as well as wave functions of hydrogenic impurities located in V-groove GaAs/AlxGa1−xAs quantum wires are calculated for different positions of the impurity inside the wires. The variational method is used and the carrier ground states are analytically calculated by an effective potential scheme together with a suitable coordinate transformation that allows the decoupling of...
متن کاملEffect of temperature on the binding energy of a shallow hydrogenic impurity in a Quantum Well Wire
X iv :c on dm at /0 50 93 75 v1 [ co nd -m at .m es -h al l] 1 4 Se p 20 05 Effect of temperature on the binding energy of a shallow hydrogenic impurity in a Quantum Well Wire T G Emam Department of Mathematics, Faculty of science, Ain Shams university, Abbassia, Cairo, Egypt. and Department of Mathematics, the German university in Cairo-GUC, New Cairo city, Main Entrance Al Tagamoa Al Khames, ...
متن کاملThe effect of first order magnetic field in a GaAs/AlAs spherical quantum dot with hydrogenic impurity
In this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a GaAs/AlAs spherical quantum dot has been calculated. The perturbation method has been used within the framework of effective mass approximation for these calculations. Overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...
متن کاملThe effect of first order magnetic field in a GaAs/AlAs spherical quantum dot with hydrogenic impurity
In this research, the effect of the first order magnetic field on the ground-state of a centered hydrogenic donor impurity in a GaAs/AlAs spherical quantum dot has been calculated. The perturbation method has been used within the framework of effective mass approximation for these calculations. Overall, the analysis shows that a proper choice of quantum dot radius and magnetic field can signifi...
متن کاملLinear Rashba Model of a Hydrogenic Donor Impurity in GaAs/GaAlAs Quantum Wells
The Rashba spin-orbit splitting of a hydrogenic donor impurity in GaAs/GaAlAs quantum wells is investigated theoretically in the framework of effective-mass envelope function theory. The Rashba effect near the interface between GaAs and GaAlAs is assumed to be a linear relation with the distance from the quantum well side. We find that the splitting energy of the excited state is larger and les...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2006
ISSN: 0103-9733
DOI: 10.1590/s0103-97332006000700017