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On collective excitations in superconductivity theory

✍ Scribed by E.R. Velibekov


Publisher
Elsevier Science
Year
1962
Weight
534 KB
Volume
28
Category
Article
ISSN
0031-8914

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Collective excitations in semiconductor
✍ Wilson B. da Costa; Umbelino de Freitas; Nelson Studart πŸ“‚ Article πŸ“… 1994 πŸ› Elsevier Science 🌐 English βš– 143 KB

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