Impurity binding energy for δ-doped quantum well structures

Effect 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, ...

Binding Energy and Spin-Orbit Splitting of a Hydrogenic Donor Impurity in AlGaN/GaN Triangle-Shaped Potential Quantum Well

In the framework of effective-mass envelope function theory, including the effect of Rashba spin-orbit coupling, the binding energy E(b) and spin-orbit split energy Г of the ground state of a hydrogenic donor impurity in AlGaN/GaN triangle-shaped potential heterointerface are calculated. We find that with the electric field of the heterojunction increasing, (1) the effective width of quantum we...

Luminescent characteristics of InGaAsP/InP multiple quantum well structures by impurity-free vacancy disordering

InGaAsP/InP multiple quantum wells with quantum well intermixing (QWI) have been prepared by Impurity-Free Vacancy Disordering (IFVD). The luminescent characteristics were investigated using photoluminescence (PL) and photoreflectance (PR), from which the band gap blueshift was observed. Si3N4, SiO2 and SOG (spin on glass) were used for the dielectric layer to enhance intermixing from the outdi...

Observation of the quantum Hall effect in δ-doped SrTiO3

The quantum Hall effect is a macroscopic quantum phenomenon in a two-dimensional electron system. The two-dimensional electron system in SrTiO3 has sparked a great deal of interest, mainly because of the strong electron correlation effects expected from the 3d orbitals. Here we report the observation of the quantum Hall effect in a dilute La-doped SrTiO3-two-dimensional electron system, fabrica...

Novel electro-optical phase modulator based on GaInAs/InP modulation-doped quantum-well structures