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Dynamical Clustering and Phase Separation in Suspensions of Self-Propelled Colloidal Particles
Open accessAbstract
We study experimentally and numerically a (quasi-)two-dimensional colloidal suspension of self-propelled spherical particles. The particles are carbon-coated Janus particles, which are propelled due to diffusiophoresis in a near-critical water-lutidine mixture. At low densities, we find that the driving stabilizes small clusters. At higher densities, the suspension undergoes a phase separation into large clusters and a dilute gas phase. The same qualitative behavior is observed in simulations of a minimal model for repulsive self-propelled particles lacking any alignment interactions. The observed behavior is rationalized in terms of a dynamical instability due to the self-trapping of self-propelled particles.
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Vicsek, T., & Zafeiris, A. (2012) · Physics Reports · doi:10.1016/j.physrep.2012.03.004 · Cited by 2,923
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Solon, A. P., Stenhammar, J., Wittkowski, R., Kardar, M., Kafri, Y., Cates, M. E., & Tailleur, J. (2015) · Physical Review Letters · doi:10.1103/physrevlett.114.198301 · Cited by 368
Metadata
- Authors
- Buttinoni, I., Bialké, J., Kümmel, F., Löwen, H., Bechinger, C., & Speck, T.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2013-06-05
- Volume
- 110
- Issue
- 23
- Pages
- 238301-238301
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2020158707
- Cited by
- 1,175
- References
- 1
- FWCI
- 51.63
- Type
- journal article
- Language
- en
- Open access
- green
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- Buttinoni, I., Bialké, J., Kümmel, F., Löwen, H., Bechinger, C., & Speck, T. (2013). Dynamical Clustering and Phase Separation in Suspensions of Self-Propelled Colloidal Particles. Physical Review Letters. https://doi.org/10.1103/physrevlett.110.238301
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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