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Folded acoustic phonons in InAs-AlAs strained-layer superlattices

AuthorsRecio Segoviano, Miguel ; Armelles Reig, Gaspar ; Ruiz, A.; Mazuelas Esteban, Ángel José
Issue Date1989
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 54: 804-806 (1989)
AbstractRaman spectroscopy is used to characterize highly mismatched (7%) InAs-AlAs superlattices grown by atomic layer molecular beam epitaxy. In particular, folded acoustic modes are presented and compared with two different theoretical models (Rytov and linear chain). We find good agreement between theory and experiments. We estimate, with a simple model, the magnitude of the effect of the strain on the phonon frequency shifts.
Identifiersdoi: 10.1063/1.100852
issn: 0003-6951
Appears in Collections:(IMN-CNM) Artículos
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