Abstract
The elementary excitation spectra of quasi-one-dimensional quantum wires is calculated and compared with inelastic light scattering experiments corresponding to recently fabricated modulation-doped quantum-well wires. Self-consistent (Hartree) potentials, wave functions, and subband structure are used as the starting point for the calculation of the collective and single-particle excitations of the system, within the random-phase- approximation. Excellent quantitative agreement is found between theory and experiment, lending strong support to the existence of a distribution of negatively charged centers close to the heterojunction interface.
| Original language | English |
|---|---|
| Pages (from-to) | 15174-15181 |
| Number of pages | 8 |
| Journal | Physical Review B |
| Volume | 50 |
| Issue number | 20 |
| DOIs | |
| State | Published - 1994 |
| Externally published | Yes |