This article is cited in 4 papers

CONDENSED MATTER

Folding of acoustic-phonon modes in GaAs/AlAs (311)A superlattices in the direction perpendicular to nanofacets

V. A. Volodin^ab, A. S. Kozhukhov^ab, A. V. Latyshev^ab, D. V. Shcheglov<sup>ab

a</sup> A. V. Rzhanov Institute of Semiconductor Physics of SB RAS, Novosibirsk
^b Novosibirsk State University

Abstract: GaAs/AlAs superlattices grown on a nanofaceted (311)A surface are studied by atomic-force microscopy and Raman scattering spectroscopy. The spectra of backscattered light in the direction perpendicular to the nano-facets exhibit peaks corresponding to folded acoustic phonons. The period estimated from the positions of these peaks is $1.6$ nm, which corresponds to half of the spacing between the nanofacets.

Received: 16.11.2011
Revised: 08.12.2011

 English version: Journal of Experimental and Theoretical Physics Letters, 2012, 95:2, 70–73

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