Publikation: Elongated polystyrene spheres as resonant building blocks in anisotropic colloidal crystals
Dateien
Datum
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Link zur Lizenz
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Sammlungen
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Publikationsstatus
Erschienen in
Zusammenfassung
Colloidal crystals have gained increasing importance due to their fascinating ability to mold the flow of light and sound (heat). The characteristics of these ordered assemblies of particles are strongly determined by the respective building blocks, which require complete understanding of their physical properties. In this study the mechanical properties of stretched polystyrene colloids (spheroids) are addressed. The non-invasive technique of Brillouin light scattering captures the vibrational spectra at hypersonic (GHz) frequencies. Resolved eigenmodes are considered fingerprints of the particles' shape, size and composing materials. A single particle model is used to simulate the experimental data by calculation of all active modes and subsequent evaluation of their contribution to the spectrum. Compared to spheres (high symmetry) more modes contribute to the spectra that limit the resolution at very high frequencies, due to the lifted mode degeneracy. Knowing the nature of the principal modes of spheroids is a precondition to understand the phononic dispersion in the respective colloidal crystals, in particular those responsible for anticrossing interactions with the effective medium acoustic phonon.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
Schlagwörter
Konferenz
Rezension
Zitieren
ISO 690
SCHNEIDER, Dirk, Peter J. BELTRAMO, Maurizio MATTARELLI, Patrick PFLEIDERER, Jan VERMANT, Daniel CRESPY, Maurizio MONTAGNA, Eric M. FURST, George FYTAS, 2013. Elongated polystyrene spheres as resonant building blocks in anisotropic colloidal crystals. In: Soft Matter. 2013, 9(38), pp. 9129-9136. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/C3SM50959ABibTex
@article{Schneider2013Elong-26544, year={2013}, doi={10.1039/C3SM50959A}, title={Elongated polystyrene spheres as resonant building blocks in anisotropic colloidal crystals}, number={38}, volume={9}, issn={1744-683X}, journal={Soft Matter}, pages={9129--9136}, author={Schneider, Dirk and Beltramo, Peter J. and Mattarelli, Maurizio and Pfleiderer, Patrick and Vermant, Jan and Crespy, Daniel and Montagna, Maurizio and Furst, Eric M. and Fytas, George} }
RDF
<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/server/rdf/resource/123456789/26544"> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-02-24T14:23:00Z</dc:date> <dc:contributor>Furst, Eric M.</dc:contributor> <dc:creator>Vermant, Jan</dc:creator> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/26544/2/Schneider_265442.pdf"/> <dc:contributor>Pfleiderer, Patrick</dc:contributor> <dc:contributor>Mattarelli, Maurizio</dc:contributor> <dc:contributor>Vermant, Jan</dc:contributor> <dc:creator>Fytas, George</dc:creator> <dcterms:rights rdf:resource="http://creativecommons.org/licenses/by/3.0/"/> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2014-02-24T14:23:00Z</dcterms:available> <dc:contributor>Beltramo, Peter J.</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dcterms:title>Elongated polystyrene spheres as resonant building blocks in anisotropic colloidal crystals</dcterms:title> <dc:contributor>Crespy, Daniel</dc:contributor> <dcterms:abstract xml:lang="eng">Colloidal crystals have gained increasing importance due to their fascinating ability to mold the flow of light and sound (heat). The characteristics of these ordered assemblies of particles are strongly determined by the respective building blocks, which require complete understanding of their physical properties. In this study the mechanical properties of stretched polystyrene colloids (spheroids) are addressed. The non-invasive technique of Brillouin light scattering captures the vibrational spectra at hypersonic (GHz) frequencies. Resolved eigenmodes are considered fingerprints of the particles' shape, size and composing materials. A single particle model is used to simulate the experimental data by calculation of all active modes and subsequent evaluation of their contribution to the spectrum. Compared to spheres (high symmetry) more modes contribute to the spectra that limit the resolution at very high frequencies, due to the lifted mode degeneracy. Knowing the nature of the principal modes of spheroids is a precondition to understand the phononic dispersion in the respective colloidal crystals, in particular those responsible for anticrossing interactions with the effective medium acoustic phonon.</dcterms:abstract> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/26544"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/26544/2/Schneider_265442.pdf"/> <dc:creator>Pfleiderer, Patrick</dc:creator> <dc:creator>Mattarelli, Maurizio</dc:creator> <dc:creator>Montagna, Maurizio</dc:creator> <dc:contributor>Fytas, George</dc:contributor> <dc:creator>Schneider, Dirk</dc:creator> <dc:contributor>Schneider, Dirk</dc:contributor> <dcterms:bibliographicCitation>Soft Matter ; 9 (2013), 38. - S. 9129-9136</dcterms:bibliographicCitation> <dcterms:issued>2013</dcterms:issued> <foaf:homepage rdf:resource="http://localhost:8080/"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/> <dc:rights>Attribution 3.0 Unported</dc:rights> <dc:creator>Furst, Eric M.</dc:creator> <dc:creator>Crespy, Daniel</dc:creator> <dc:creator>Beltramo, Peter J.</dc:creator> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dc:contributor>Montagna, Maurizio</dc:contributor> </rdf:Description> </rdf:RDF>