MODULATION-DOPED QUANTUM-WELL WIRES - GROUND-STATE PROPERTIES

Self-consistent calculations of the potential, wave functions, and sub band structure of modulation-doped multiple-quantum wires are presente d. The model parameters are chosen so as to describe recently fabricat ed quantum wires where clear evidence of one-dimensional behavior has been found. Quite good agreement with experimental data is obtained wh en a distribution of negatively charged centers (presumably induced by the ion milling in the real samples) is included. Exchange and correl ation corrections on the Hartree approximation are included within the local-density formalism and found to renormalize the intersubband spl ittings by a fraction of a meV.