Miniband-gap optical excitations in doped semiconductor superlattices
β Scribed by Jian Zhang; Sergio E. Ulloa
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 384 KB
- Volume
- 71
- Category
- Article
- ISSN
- 0038-1098
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π SIMILAR VOLUMES
Collective excitations in semiconductor superlattices are studied beyond the randomphase approximation (RPA). The Singwi, 'Tosi, Land and SjΓΆlander (STLS) theory, which accounts for exchange and short-range correlations effects through an effective potential depending on the structure factor, is gen
The minibands of p-type Ξ΄-doping superlattices (SLs) in GaAs are studied in dependence on acceptor sheet doping concentrations N A and SL periods d. The calculations rely on effective mass theory, applied to the 8 valence band hole gas. Hole-hole interaction is selfconsistently taken into account, i