Bound states of coupled plasmon-phonon modes at neutral donors in semiconductor quantum wells

✍ Scribed by Stephen W. Pierson; T.L. Reinecke; S. Rudin

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 150 KB
• Volume: 15
• Category: Article
• ISSN: 0749-6036
• DOI: 10.1006/spmi.1994.1039

✦ Synopsis

The bound states of plasmons, of phonons and of coupled plasmon-phonon modes at neutral donors in semiconductor quantiun well systrms have been st udied here. The interaction of plasmon-phonon excitations, which are important in compound semiconductor systems, with electrons, and the coupling of plasmons with electrons have been derived in the fong wave length limit of the (\mathrm{h}) andom Phase approximation. These interactions are used to derive expressions for the binding energies of the collective excitations to neutral donors. The dependence of the binding energy of the coupled plasmon-phonon modes on the well width of quant-um wells is found to be particularly rich. The present results are in generally good arrord with available experimental data for fluantum well systems.