Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/57742

TitleStructural and vibrational properties of SnxGe1-x: Modeling and experiments
Author(s)Vasin, A. S.
Oliveira, F.
Cerqueira, M. F.
Schulze, J.
Vasilevskiy, Mikhail
Keywordsalloy
bond length
strain
phonon
Raman scattering
Issue date19-Mar-2018
PublisherAmerican Institute of Physics
JournalJournal of Applied Physics
CitationJournal of Applied Physics 124, 035105 (2018)
Abstract(s)The effects of composition and macroscopic strain on the structural properties and lattice vibrations of SnxGe1-x solid solutions (SSs) are investigated numerically, employing Tersoff empirical inter-atomic potentials, and experimentally. The calculations provide statistical distributions of bond lengths, pair correlation function and vibrational Raman spectra of the SSs. Using this approach, we are able to evaluate the tin-content-dependent shifts due to the local environment (i.e changes in the atomic mass and bond stiffness) and strain effects in the calculated Raman spectra and compare them to experimental data. The relative importance of the composition dependent effects of the local environment and strain for epitaxial layers of GeSn solid solutions is analysed.
TypeArticle
URIhttp://hdl.handle.net/1822/57742
DOI10.1063/1.5030104
ISSN0021-8979
Publisher versionhttps://doi.org/10.1063/1.5030104
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CDF - CEP - Artigos/Papers (with refereeing)

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