Photostimulated attenuation of hypersound in superlattices

Photostimulated attenuation of hypersound in semiconductor superlattices has been investigated theoretically. It is shown that the attenuation coefficient depends on the phonon wave vectorqin an oscillatory manner and that from this oscillation the band width Δ of the superlattice can be found.

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Bibliographische Detailangaben
Veröffentlicht in:	Superlattices and microstructures 1997-01, Vol.22 (4), p.453-457
Hauptverfasser:	Mensah, S.Y., Allotey, F.K., Adjepong, S.K., Mensah, N.G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Electron states and collective excitations in multilayers, quantum wells, mesoscopic, and nanoscale systems Electron states and collective excitations in thin films, multilayers, quantum wells, mesoscopic and nanoscale systems Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology metal-organic chemical vapour deposition molecular beam epitaxy photostimulation Physics Solid surfaces and solid-solid interfaces superlattice Surfaces and interfaces thin films and whiskers (structure and nonelectronic properties)
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Beschreibung
Zusammenfassung:	Photostimulated attenuation of hypersound in semiconductor superlattices has been investigated theoretically. It is shown that the attenuation coefficient depends on the phonon wave vectorqin an oscillatory manner and that from this oscillation the band width Δ of the superlattice can be found.
ISSN:	0749-6036 1096-3677
DOI:	10.1006/spmi.1996.0447