Dispersive kinetics in discotic liquid crystals

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dc.contributor.authorKruglova, Oen_AU
dc.contributor.authorMulder, FMen_AU
dc.contributor.authorKearley, GJen_AU
dc.contributor.authorPicken, SJen_AU
dc.contributor.authorStride, JAen_AU
dc.contributor.authorParaschiv, Ien_AU
dc.contributor.authorZuilhof, Hen_AU
dc.date.accessioned2011-01-16T23:33:38Zen_AU
dc.date.available2011-01-16T23:33:38Zen_AU
dc.date.issued2010-11-22en_AU
dc.date.statistics2010-11-22en_AU
dc.description.abstractThe dynamics of the discotic liquid-crystalline system, hexakis (n-hexyloxy) triphenylene (HAT6), is considered in the frame of the phenomenological model for rate processes proposed by Berlin. It describes the evolution of the system in the presence of the long-time scale correlations in the system, and we compare this with experimental quasielastic neutron scattering of the molecular assembly of HAT6 in the columnar phase. We interpret the parameters of this model in terms of nonextensive thermodynamics in which rare events in the local fast dynamics of some parts of the system control the slower dynamics of the larger molecular entity and lead to a fractional diffusion equation. The importance of these rare local events to the overall dynamics of the system is linked to the entropic index, this being obtained from the data within the model approach. Analysis of the waiting-time dependence from momentum transfer reveals a Lévy distribution of jump lengths, which allows us to construct the van Hove correlation function for discotic liquid-crystalline system. © 2010, American Physical Societyen_AU
dc.identifier.articlenumber51703en_AU
dc.identifier.citationKruglova, O., Mulder, F. M., Kearley, G. J., Picken, S. J., Stride, J. A., Paraschiv, I., & Zuilhof, H. (2010). Dispersive kinetics in discotic liquid crystals. Physical Review E, 82(5), 051703. doi:10.1103/PhysRevE.82.051703en_AU
dc.identifier.govdoc3119en_AU
dc.identifier.issn1539-3755en_AU
dc.identifier.issue5en_AU
dc.identifier.journaltitlePhysical Review Een_AU
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevE.82.051703en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/2922en_AU
dc.identifier.volume82en_AU
dc.language.isoenen_AU
dc.publisherAmerican Physical Societyen_AU
dc.subjectKineticsen_AU
dc.subjectLiquid crystalsen_AU
dc.subjectScatteringen_AU
dc.subjectThermodynamicsen_AU
dc.subjectDynamicsen_AU
dc.subjectDiffusion equationsen_AU
dc.titleDispersive kinetics in discotic liquid crystalsen_AU
dc.typeJournal Articleen_AU
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