Stochastic transport of particles across single barriers

Transport phenomena of interacting particles are of high interest for many applications in biology and mesoscopic systems. Here we present measurements on colloidal particles, which are confined in narrow channels on a substrate and interact with a barrier, which impedes the motion along the channel. The substrate of the particle is tilted in order for the particles to be driven towards the barrier and, if the energy gained by the tilt is large enough, surpass the barrier by thermal activation. We therefore study the influence of this barrier as well as the influence of particle interaction on the particle transport through such systems. All experiments are supported with Brownian dynamics simulations in order to complement the experiments with tests of a large range of parameter space which cannot be accessed in experiments.

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KREUTER, Christian, Ullrich SIEMS, Peter HENSELER, Peter NIELABA, Paul LEIDERER, Artur ERBE, 2012. Stochastic transport of particles across single barriers. In: Journal of Physics: Condensed Matter. 2012, 24(46), 464120. ISSN 0953-8984. eISSN 1361-648X. Available under: doi: 10.1088/0953-8984/24/46/464120

BibTex

@article{Kreuter2012-11-21Stoch-22763,
  year={2012},
  doi={10.1088/0953-8984/24/46/464120},
  title={Stochastic transport of particles across single barriers},
  number={46},
  volume={24},
  issn={0953-8984},
  journal={Journal of Physics: Condensed Matter},
  author={Kreuter, Christian and Siems, Ullrich and Henseler, Peter and Nielaba, Peter and Leiderer, Paul and Erbe, Artur},
  note={Article Number: 464120}
}

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