Calculation of electronic properties in AlxGa1?x delta-doped systems
The calculation of the electronic energy levels of n-type ?-doped quantum wells in a AlGaAs matrix is presented. Many-body effects in the two-dimensional electron gas are taken into account by using a local-density Thomas-Fermi approach. Special consideration is taken into when the values of the Al molar fraction x?0.45, and the ternary alloy becomes an indirect gap material. The results suggest that in this case the AlxGa1?xAs can support two-dimensional conduction channels associated to the delta-doping, with carrier densities exceeding 1013cm?2.
electronic properties delta-doping alxga1?xas