A Double-Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures

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2009
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Horbach, Jürgen
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Physical Review Letters. 2009, 103(20), 205901. Available under: doi: 10.1103/PhysRevLett.103.205901
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We study by molecular dynamics computer simulation a binary soft-sphere mixture that shows a pronounced difference in the species long-time dynamics. Anomalous, power-law-like diffusion of small particles arises that can be understood as a precursor of a double-transition scenario, combining a glass transition and a separate small-particle localization transition. Switching off small-particle excluded-volume constraints slows down, rather than enhances, small-particle transport.

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ISO 690VOIGTMANN, Thomas, Jürgen HORBACH, 2009. A Double-Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures. In: Physical Review Letters. 2009, 103(20), 205901. Available under: doi: 10.1103/PhysRevLett.103.205901
BibTex
@article{Voigtmann2009Doubl-8949,
  year={2009},
  doi={10.1103/PhysRevLett.103.205901},
  title={A Double-Transition Scenario for Anomalous Diffusion in Glass-Forming Mixtures},
  number={20},
  volume={103},
  journal={Physical Review Letters},
  author={Voigtmann, Thomas and Horbach, Jürgen},
  note={Article Number: 205901}
}
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