Liebchen, B. ; Marenduzzo, D. ; Cates, M. E. (2017)
Phoretic Interactions Generically Induce Dynamic Clusters and Wave Patterns in Active Colloids.
In: Physical Review Letters, 118 (26)
doi: 10.1103/PhysRevLett.118.268001
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
We introduce a representative minimal model for phoretically interacting active colloids. Combining kinetic theory, linear stability analyses, and a general relation between self-propulsion and phoretic interactions in auto-diffusiophoretic and auto-thermophoretic Janus colloids collapses the parameter space to two dimensions: area fraction and P\backslash'eclet number. This collapse arises when the lifetime of the self-generated phoretic fields is not too short, and leads to a universal phase diagram showing that phoretic interactions {\backslashit generically} induce pattern formation in typical Janus colloids, even at very low density. The resulting patterns include waves and dynamic aggregates closely resembling the living clusters found in experiments on dilute suspension of Janus colloids.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Liebchen, B. ; Marenduzzo, D. ; Cates, M. E. |
| Art des Eintrags: | Bibliographie |
| Titel: | Phoretic Interactions Generically Induce Dynamic Clusters and Wave Patterns in Active Colloids |
| Sprache: | Englisch |
| Publikationsjahr: | 28 Juni 2017 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review Letters |
| Jahrgang/Volume einer Zeitschrift: | 118 |
| (Heft-)Nummer: | 26 |
| DOI: | 10.1103/PhysRevLett.118.268001 |
| Kurzbeschreibung (Abstract): | We introduce a representative minimal model for phoretically interacting active colloids. Combining kinetic theory, linear stability analyses, and a general relation between self-propulsion and phoretic interactions in auto-diffusiophoretic and auto-thermophoretic Janus colloids collapses the parameter space to two dimensions: area fraction and P\backslash'eclet number. This collapse arises when the lifetime of the self-generated phoretic fields is not too short, and leads to a universal phase diagram showing that phoretic interactions {\backslashit generically} induce pattern formation in typical Janus colloids, even at very low density. The resulting patterns include waves and dynamic aggregates closely resembling the living clusters found in experiments on dilute suspension of Janus colloids. |
| Freie Schlagworte: | publiziert |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Festkörperphysik (2021 umbenannt in Institut für Physik Kondensierter Materie (IPKM)) |
| Hinterlegungsdatum: | 28 Mai 2019 05:07 |
| Letzte Änderung: | 19 Aug 2020 10:51 |
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