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Segregation of oppositely driven colloidal particles in hard-walled channels : A finite-size study

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2015

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https://doi.org/10.1103/PhysRevE.92.012323
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Physical Review E. 2015, 92(1), 012323. ISSN 1063-651X. eISSN 1095-3787. Available under: doi: 10.1103/PhysRevE.92.012323

Zusammenfassung

We investigate segregation phenomena of particles driven in opposite directions with Brownian dynamics simulations. The particles interact via a repulsive potential and are confined in three-dimensional hard-walled pipes with quadratic cross sections. In a systematic finite-size study, the pipe length is varied. Ordering on finite length scales can be observed, but global segregation seems to vanish for infinite channel length, as it was recently found for lane formation in two dimensions. As an additional effect of the finite hard-walled boundary conditions, interface vibrations and longitudinal demixing are found.

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530 Physik

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colloids; simulation; Brownian dynamics; finite-size effects; microchannel; nonequilibrium phase transition

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ISO 690HEINZE, Birte, Ullrich SIEMS, Peter NIELABA, 2015. Segregation of oppositely driven colloidal particles in hard-walled channels : A finite-size study. In: Physical Review E. 2015, 92(1), 012323. ISSN 1063-651X. eISSN 1095-3787. Available under: doi: 10.1103/PhysRevE.92.012323
BibTex
@article{Heinze2015Segre-31783,
  year={2015},
  doi={10.1103/PhysRevE.92.012323},
  title={Segregation of oppositely driven colloidal particles in hard-walled channels : A finite-size study},
  number={1},
  volume={92},
  issn={1063-651X},
  journal={Physical Review E},
  author={Heinze, Birte and Siems, Ullrich and Nielaba, Peter},
  note={Article Number: 012323}
}
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