Anomalous transport of magnetic colloids in a liquid crystal–magnetic colloid mixture

dc.contributor.authorShrivastav, Gaurav P.
dc.contributor.authorKlapp, Sabine H. L.
dc.date.accessioned2019-04-30T09:19:18Z
dc.date.available2019-04-30T09:19:18Z
dc.date.issued2019-01-03
dc.description.abstractWe report an extensive molecular dynamics study on the translational dynamics of a hybrid system composed of dipolar soft spheres (DSS), representing ferromagnetic particles, suspended in a liquid crystal (LC) matrix. We observe that the LC matrix strongly modifies the dynamics of the DSS. In the isotropic regime, the DSS show a crossover from subdiffusive to normal diffusive behavior at long times, with an increase of the subdiffusive regime as the dipolar coupling strength is increased. In the nematic regime, the LC matrix, due to the collective reorientation of LC particles, imposes a cylindrical confinement on the DSS chains. This leads to a diffusive dynamics of DSS along the nematic director and a subdiffusive dynamics (with an exponent of ∼0.5) in the perpendicular direction. The confinement provided by the LC matrix is also reflected by the oscillatory behavior of the components of the velocity autocorrelation function of the DSS in the nematic phase.en
dc.description.sponsorshipDFG, 220228408, SPP 1681: Feldgesteuerte Partikel-Matrix-Wechselwirkungen: Erzeugung, skalenübergreifende Modellierung und Anwendung magnetischer Hybridmaterialienen
dc.description.sponsorshipTU Berlin, Open-Access-Mittel - 2019en
dc.identifier.eissn1744-6848
dc.identifier.issn1744-683X
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/9392
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-8451
dc.language.isoen
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/
dc.subject.ddc530 Physikde
dc.titleAnomalous transport of magnetic colloids in a liquid crystal–magnetic colloid mixtureen
dc.typeArticleen
dc.type.versionpublishedVersionen
dcterms.bibliographicCitation.doi10.1039/C8SM02090F
dcterms.bibliographicCitation.issue5
dcterms.bibliographicCitation.journaltitleSoft Matteren
dcterms.bibliographicCitation.originalpublishernameRoyal Society of Chemistryen
dcterms.bibliographicCitation.originalpublisherplaceCambridgeen
dcterms.bibliographicCitation.pageend982
dcterms.bibliographicCitation.pagestart973
dcterms.bibliographicCitation.volume15
tub.accessrights.dnbfree
tub.affiliationFak. 2 Mathematik und Naturwissenschaften::Inst. Theoretische Physik::FG Computersimulationen und Theorie komplexer Fluidede
tub.affiliation.facultyFak. 2 Mathematik und Naturwissenschaftende
tub.affiliation.groupFG Computersimulationen und Theorie komplexer Fluidede
tub.affiliation.instituteInst. Theoretische Physikde
tub.publisher.universityorinstitutionTechnische Universität Berlinde

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