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http://hdl.handle.net/2445/141945
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DC Field | Value | Language |
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dc.contributor.author | Pagès Casas, Josep M. | - |
dc.contributor.author | Straube, Arthur V. | - |
dc.contributor.author | Tierno, Pietro | - |
dc.contributor.author | Ignés i Mullol, Jordi | - |
dc.contributor.author | Sagués i Mestre, Francesc | - |
dc.date.accessioned | 2019-10-09T12:19:11Z | - |
dc.date.available | 2019-12-07T06:10:25Z | - |
dc.date.issued | 2018-12-07 | - |
dc.identifier.issn | 1744-683X | - |
dc.identifier.uri | http://hdl.handle.net/2445/141945 | - |
dc.description.abstract | We present a quantitative analysis of the nonequilibrium assembly of colloidal particles dispersed ina nematic liquid crystal. The driven particles assemble into reconfigurable circular clusters by liquid-crystal-enabled electrokinetic phenomena generated by an AC electric field that provides propulsionalong the local director. We identify the coexistence of different aggregation states, including a central,jammed core, where short-range elastic attraction dominates, surrounded by a liquid-like corona whereparticles retain their mobility but reach a mechanical equilibrium that we rationalize in terms of abalance between centripetal phoretic drive and pairwise repulsion. An analysis of the compressibleliquid-like region reveals a linear density profile that can be tuned with the field frequency, and abond-orientational order that reaches a maximum at intermediate packing densities, where elasticeffects are minimized. Since the phoretic propulsion force acts also on assembled particles, wecompute the mechanical pressure and show that a hard-disk equation of state can be used to describethe assembly of this driven system. | - |
dc.format.extent | 9 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Royal Society of Chemistry | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1039/C8SM02101E | - |
dc.relation.ispartof | Soft Matter, 2018, vol. 15, p. 312-320 | - |
dc.relation.uri | https://doi.org/10.1039/C8SM02101E | - |
dc.rights | (c) Pagès, Josep M. et al., 2018 | - |
dc.source | Articles publicats en revistes (Ciència dels Materials i Química Física) | - |
dc.subject.classification | Col·loides | - |
dc.subject.classification | Cristalls líquids nemàtics | - |
dc.subject.other | Colloids | - |
dc.subject.other | Nematic liquid crystals | - |
dc.title | Inhomogeneous assembly of driven nematic colloids | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 686128 | - |
dc.date.updated | 2019-10-09T12:19:12Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
Files in This Item:
File | Description | Size | Format | |
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686128.pdf | 2.03 MB | Adobe PDF | View/Open |
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