In this work, we have studied the miniband and minigaps of GaN/AlN constant total effective radius multi-shells quantum dots (CTER-MSQDs) and Rings (CTERMSQRs).We have investigated effects of the Hydrogenic donor impurities, quantum dots and rings radii, and the number of wells on miniband formation by sub-band energy calculations. We show that in these systems, minigaps can be created and then...

The self-consistent density response of an electron system is studied in a two-dimensional 2D lateral superlattice SL with spin-orbit interaction SOI . Under the effect of the lateral periodic potential, the single-electron 2D states are broadened into minibands that are spin split by SOI. In the case of a single fully occupied miniband, we calculate the long-wavelength limit of the polarizatio...

We have performed calculations of the field dependent excitonic absorption spectra of semiconductor superlattices in a model which is capable of fully taking into account the Coulomb interaction and both bound and continuum excitonic states. Results are obtained for the complete range of fields from the Franz-Keldysh to the Wannier-Stark regime. The lineshapes of the excitonic spectra are shown...