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Título : Phonon properties and Raman response of (113) GaAs/AlAs corrugated superlattices
Autor : Castrillo, Pedro, Armelles Reig, Gaspar, González Sotos, Luisa, Domínguez, P. S., Colombo, L.
Fecha de publicación : 15-Jan-1995
Editor: American Institute of Physics
Resumen: We 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.
Descripción : 6 páginas, 6 figuras.
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ISSN: 1098-0121
DOI: 10.1103/PhysRevB.51.1647
Citación : Physical Review B 51(3): 1647-1652 (1995)
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