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Open Access item Phonon properties and Raman response of (113) GaAs/AlAs corrugated superlattices
Armelles Reig, Gaspar
Domínguez, P. S.
|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|
|Appears in Collections:||(IMM-CNM) Artículos|
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