THE SELF-CONSISTENT ELECTRONIC-STRUCTURE OF RECTANGULAR FREESTANDING QUANTUM WIRES - FOURIER EXPANSION APPROACH

A method for the self-consistent calculation of rectangular free-stand ing quantum wires is presented. The method is also used for the electr onic structure calculation of cladded quantum wins. It relies on the w avefunction's Fourier expansion, and uses the structure symmetry to sa ve computation time. Calculations are performed for these two types of quantum wire at a number of dopant and surface state densities, and t he influence of various parameters is analyzed. At low temperatures, t he occurrence of Friedel oscillations is noticed, arising from a very limited number of well separated electronic states. (C) 1998 Academic Press Limited.