Publikation: Glassy relaxation and excess wing in mode-coupling theory : The dynamic susceptibility of propylene carbonate above and below Tc
Lade...
Dateien
Zu diesem Dokument gibt es keine Dateien.
Datum
2011
Autor:innen
Herausgeber:innen
ISSN der Zeitschrift
Electronic ISSN
ISBN
Bibliografische Daten
Verlag
Schriftenreihe
Auflagebezeichnung
URI (zitierfähiger Link)
DOI (zitierfähiger Link)
Internationale Patentnummer
Angaben zur Forschungsförderung
Projekt
Open Access-Veröffentlichung
Core Facility der Universität Konstanz
Titel in einer weiteren Sprache
Publikationstyp
Zeitschriftenartikel
Publikationsstatus
Published
Erschienen in
Physical Review E. 2011, 84(3). ISSN 1539-3755. Available under: doi: 10.1103/PhysRevE.84.031506
Zusammenfassung
We explore the possibility of describing experimental susceptibility spectra of the glass former propylene carbonate with a two-component schematic model of mode-coupling theory (MCT) from above the melting point down to temperatures far below the critical temperature of MCT. By introducing a phenomenological time-dependent hopping rate, the spectra are reproduced in the full frequency and temperature range available. Literature data of dielectric susceptibilities and depolarized Brillouin light-scattering spectra are combined with our measurements of photon correlation spectroscopy to cover up to 18 decades in frequency of spectra for two different dynamical variables. A consistent description of all data sets is obtained by adjusting only a few physically motivated parameters. In particular the excess wing or slow beta-relaxation commonly observed in the susceptibility spectra can consistently be modelled as originating from a coupling of the individual experimental probe correlator to the collective density fluctuations.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
530 Physik
Schlagwörter
Konferenz
Rezension
undefined / . - undefined, undefined
Zitieren
ISO 690
DOMSCHKE, Markus, Mie MARSILIUS, Thomas BLOCHOWICZ, Thomas VOIGTMANN, 2011. Glassy relaxation and excess wing in mode-coupling theory : The dynamic susceptibility of propylene carbonate above and below Tc. In: Physical Review E. 2011, 84(3). ISSN 1539-3755. Available under: doi: 10.1103/PhysRevE.84.031506BibTex
@article{Domschke2011Glass-16595,
year={2011},
doi={10.1103/PhysRevE.84.031506},
title={Glassy relaxation and excess wing in mode-coupling theory : The dynamic susceptibility of propylene carbonate above and below Tc},
number={3},
volume={84},
issn={1539-3755},
journal={Physical Review E},
author={Domschke, Markus and Marsilius, Mie and Blochowicz, Thomas and Voigtmann, Thomas}
}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/123456789/16595">
<dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
<dc:creator>Marsilius, Mie</dc:creator>
<dc:rights>terms-of-use</dc:rights>
<dc:contributor>Domschke, Markus</dc:contributor>
<dcterms:issued>2011</dcterms:issued>
<dc:creator>Blochowicz, Thomas</dc:creator>
<dc:contributor>Marsilius, Mie</dc:contributor>
<dcterms:title>Glassy relaxation and excess wing in mode-coupling theory : The dynamic susceptibility of propylene carbonate above and below Tc</dcterms:title>
<bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/16595"/>
<dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-11-07T07:31:37Z</dcterms:available>
<void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
<dc:contributor>Blochowicz, Thomas</dc:contributor>
<dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/>
<dc:contributor>Voigtmann, Thomas</dc:contributor>
<dc:creator>Domschke, Markus</dc:creator>
<dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
<foaf:homepage rdf:resource="http://localhost:8080/"/>
<dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
<dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-11-07T07:31:37Z</dc:date>
<dc:creator>Voigtmann, Thomas</dc:creator>
<dc:language>eng</dc:language>
<dcterms:bibliographicCitation>Publ. in: Physical Review E 84 ; 84 (2011), 3. - 031506</dcterms:bibliographicCitation>
<dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/52"/>
<dcterms:abstract xml:lang="eng">We explore the possibility of describing experimental susceptibility spectra of the glass former propylene carbonate with a two-component schematic model of mode-coupling theory (MCT) from above the melting point down to temperatures far below the critical temperature of MCT. By introducing a phenomenological time-dependent hopping rate, the spectra are reproduced in the full frequency and temperature range available. Literature data of dielectric susceptibilities and depolarized Brillouin light-scattering spectra are combined with our measurements of photon correlation spectroscopy to cover up to 18 decades in frequency of spectra for two different dynamical variables. A consistent description of all data sets is obtained by adjusting only a few physically motivated parameters. In particular the excess wing or slow beta-relaxation commonly observed in the susceptibility spectra can consistently be modelled as originating from a coupling of the individual experimental probe correlator to the collective density fluctuations.</dcterms:abstract>
</rdf:Description>
</rdf:RDF>
