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Title: Phonon properties and Raman response of (113) GaAs/AlAs corrugated superlattices
Authors: Castrillo, Pedro ; Armelles Reig, Gaspar ; González Sotos, Luisa ; Domínguez, P. S.; Colombo, L.
Issue Date: 15-Jan-1995
Publisher: American Institute of Physics
Citation: Physical Review B 51(3): 1647-1652 (1995)
Abstract: 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.
Description: 6 páginas, 6 figuras.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevB.51.1647
URI: http://hdl.handle.net/10261/33794
DOI: 10.1103/PhysRevB.51.1647
ISSN: 1098-0121
Appears in Collections:(IMM-CNM) Artículos
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