Effect of confinement on the mode dynamics of dipole clusters

Schella, André; Melzer, André; July, Christoph; Bechinger, Clemens

Effect of confinement on the mode dynamics of dipole clusters

Dateien

Schella_0-411162.pdfGröße: 470.74 KBDownloads: 293

Datum

2015

Autor:innen

Schella, André

Melzer, André

July, Christoph

Bechinger, Clemens

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Soft matter. 2015, 11(6), pp. 1197-1207. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/c4sm02333a

Zusammenfassung

Dynamical properties of colloidal clusters composed of paramagnetic beads are presented. The clusters were trapped either in a parabolic trough or in a hard-wall confinement. In order to access the dynamics of the ensembles, the instantaneous normal mode (INM) approach is utilized, which uses cluster configurations as an input. The peaks in the mode spectra weaken when the system size is increased and when the coupling strength is lowered. The short-time diffusive properties of the clusters are deduced using the INM technique. It is found that angular diffusion is always larger than radial diffusion regardless of the shape of the external trap. Further, short-time diffusion seems to be almost independent of the coupling strength in the solid regime, but decreases with increasing packing fraction and size of the ensembles. In general, it is found that diffusion is larger for parabolically confined than for hard-wall trapped clusters.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

SCHELLA, André, André MELZER, Christoph JULY, Clemens BECHINGER, 2015. Effect of confinement on the mode dynamics of dipole clusters. In: Soft matter. 2015, 11(6), pp. 1197-1207. ISSN 1744-683X. eISSN 1744-6848. Available under: doi: 10.1039/c4sm02333a

BibTex

@article{Schella2015-02-14Effec-39272,
  year={2015},
  doi={10.1039/c4sm02333a},
  title={Effect of confinement on the mode dynamics of dipole clusters},
  number={6},
  volume={11},
  issn={1744-683X},
  journal={Soft matter},
  pages={1197--1207},
  author={Schella, André and Melzer, André and July, Christoph and Bechinger, Clemens}
}

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/123456789/39272">
    <dcterms:title>Effect of confinement on the mode dynamics of dipole clusters</dcterms:title>
    <dc:creator>Melzer, André</dc:creator>
    <dc:contributor>July, Christoph</dc:contributor>
    <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-14T08:34:56Z</dcterms:available>
    <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-06-14T08:34:56Z</dc:date>
    <dc:language>eng</dc:language>
    <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39272/1/Schella_0-411162.pdf"/>
    <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <dc:contributor>Schella, André</dc:contributor>
    <dc:creator>Bechinger, Clemens</dc:creator>
    <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/>
    <dcterms:rights rdf:resource="https://rightsstatements.org/page/InC/1.0/"/>
    <dc:rights>terms-of-use</dc:rights>
    <foaf:homepage rdf:resource="http://localhost:8080/"/>
    <dc:creator>Schella, André</dc:creator>
    <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/server/rdf/resource/123456789/41"/>
    <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/39272"/>
    <dcterms:issued>2015-02-14</dcterms:issued>
    <dc:creator>July, Christoph</dc:creator>
    <dc:contributor>Bechinger, Clemens</dc:contributor>
    <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/39272/1/Schella_0-411162.pdf"/>
    <dc:contributor>Melzer, André</dc:contributor>
    <dcterms:abstract xml:lang="eng">Dynamical properties of colloidal clusters composed of paramagnetic beads are presented. The clusters were trapped either in a parabolic trough or in a hard-wall confinement. In order to access the dynamics of the ensembles, the instantaneous normal mode (INM) approach is utilized, which uses cluster configurations as an input. The peaks in the mode spectra weaken when the system size is increased and when the coupling strength is lowered. The short-time diffusive properties of the clusters are deduced using the INM technique. It is found that angular diffusion is always larger than radial diffusion regardless of the shape of the external trap. Further, short-time diffusion seems to be almost independent of the coupling strength in the solid regime, but decreases with increasing packing fraction and size of the ensembles. In general, it is found that diffusion is larger for parabolically confined than for hard-wall trapped clusters.</dcterms:abstract>
  </rdf:Description>
</rdf:RDF>

Universitätsbibliographie

Nein