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Title

Phonon properties and Raman response of (113) GaAs/AlAs corrugated superlattices

AuthorsCastrillo, Pedro; Armelles Reig, Gaspar CSIC ORCID; González Sotos, Luisa; Domínguez, P. S.; Colombo, L.
Issue Date15-Jan-1995
PublisherAmerican Institute of Physics
CitationPhysical Review B 51(3): 1647-1652 (1995)
AbstractWe present an analysis of the vibrational properties and Raman response of (113)-oriented GaAs/AlAs superlattices with periodically corrugated interfaces. The vibrational properties have been calculated using the bond-charge model and the Raman response is evaluated in the framework of the bond polarizability model. We have measured the Raman spectra of samples grown by molecular-beam epitaxy, where an additional in-plane periodicity was expected, and of samples grown by atomic-layer molecular-beam epitaxy, which did not present this new in-plane periodicity. The comparison between the experimental results and the theoretical simulations suggests that faceting of the surface observed in the samples grown by molecular-beam epitaxy is not maintained in the buried interface.
Description6 páginas, 6 figuras.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.51.1647
URIhttp://hdl.handle.net/10261/33794
DOIhttp://dx.doi.org/10.1103/PhysRevB.51.1647
ISSN1098-0121
Appears in Collections:(IMN-CNM) Artículos
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