Raman scattering of folded acoustic phonons in self-assembled Si/Ge dot superlattices

URN to cite this document:: urn:nbn:de:bvb:355-epub-277915
DOI to cite this document:: 10.5283/epub.27791

Tan, P. H. ; Bougeard, Dominique ; Abstreiter, Gerhard ; Brunner, K.

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Date of publication of this fulltext: 05 Mar 2013 07:26

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Abstract

Self-assembled Si/Ge dot multilayers with small, uncorrelated dots fabricated by molecular beam epitaxy in the Stranski-Krastanov growth mode are studied by Raman scattering of folded longitudinal acoustic (FLA) modes. The FLA Raman spectra are analyzed and modeled with respect to mode frequencies and the spectral envelope of mode intensities. The deduced average superlattice properties are ...