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Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities

Using the electron emission channeling and Rutherford backscattering/channeling techniques, the influence of the mosaicity of a thin film on the axial channeling of charged particles was investigated. It is found that crystal mosaicity leads to a broadening and a degradation of the experimental chan...

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Autores principales: De Vries, Bart, Wahl, Ulrich, Ruffenach, S, Briot, Olivier, Vantomme, André
Lenguaje:eng
Publicado: 2013
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.4826705
http://cds.cern.ch/record/1640594
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author De Vries, Bart
Wahl, Ulrich
Ruffenach, S
Briot, Olivier
Vantomme, André
author_facet De Vries, Bart
Wahl, Ulrich
Ruffenach, S
Briot, Olivier
Vantomme, André
author_sort De Vries, Bart
collection CERN
description Using the electron emission channeling and Rutherford backscattering/channeling techniques, the influence of the mosaicity of a thin film on the axial channeling of charged particles was investigated. It is found that crystal mosaicity leads to a broadening and a degradation of the experimental channeling effects. This phenomenon, which is shown to be of major importance when assessing the lattice site of impurities in a single crystal, can be modeled quantitatively by using the mosaic tilt and twist components derived from X-ray rocking curve scans. As a case study, we illustrate that our approach allows to accurately determine the lattice site of Er in AlN, despite the significant influence of mosaicity on the channeling measurements.
id cern-1640594
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2013
record_format invenio
spelling cern-16405942019-09-30T06:29:59Zdoi:10.1063/1.4826705http://cds.cern.ch/record/1640594engDe Vries, BartWahl, UlrichRuffenach, SBriot, OlivierVantomme, AndréInfluence of crystal mosaicity on axial channeling effects and lattice site determination of impuritiesCondensed MatterUsing the electron emission channeling and Rutherford backscattering/channeling techniques, the influence of the mosaicity of a thin film on the axial channeling of charged particles was investigated. It is found that crystal mosaicity leads to a broadening and a degradation of the experimental channeling effects. This phenomenon, which is shown to be of major importance when assessing the lattice site of impurities in a single crystal, can be modeled quantitatively by using the mosaic tilt and twist components derived from X-ray rocking curve scans. As a case study, we illustrate that our approach allows to accurately determine the lattice site of Er in AlN, despite the significant influence of mosaicity on the channeling measurements.CERN-OPEN-2014-003oai:cds.cern.ch:16405942013-07-28
spellingShingle Condensed Matter
De Vries, Bart
Wahl, Ulrich
Ruffenach, S
Briot, Olivier
Vantomme, André
Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title_full Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title_fullStr Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title_full_unstemmed Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title_short Influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
title_sort influence of crystal mosaicity on axial channeling effects and lattice site determination of impurities
topic Condensed Matter
url https://dx.doi.org/10.1063/1.4826705
http://cds.cern.ch/record/1640594
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AT wahlulrich influenceofcrystalmosaicityonaxialchannelingeffectsandlatticesitedeterminationofimpurities
AT ruffenachs influenceofcrystalmosaicityonaxialchannelingeffectsandlatticesitedeterminationofimpurities
AT briotolivier influenceofcrystalmosaicityonaxialchannelingeffectsandlatticesitedeterminationofimpurities
AT vantommeandre influenceofcrystalmosaicityonaxialchannelingeffectsandlatticesitedeterminationofimpurities