Publikation:

Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres

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Baumgartl_0-414968.pdf
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2007

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Baumgartl, Jörg
Dullens, Roel P. A.
Dijkstra, Marjolein
Roth, Roland

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http://nbn-resolving.de/urn:nbn:de:bsz:352-0-414968
DOI (zitierfähiger Link)
https://doi.org/10.1103/PhysRevLett.98.198303
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http://arxiv.org/abs/0704.0343v2

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Open Access Green

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Physik: Publikationen
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Published

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Physical Review Letters. 2007, 98(19), 198303. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.98.198303

Zusammenfassung

Using confocal-microscopy we investigate the structure of binary mixtures of colloidal hard spheres with size ratio q=0.61. As a function of the packing fraction of the two particle species, we observe a marked change of the dominant wavelength in the pair correlation function. This behavior is in excellent agreement with a recently predicted structural crossover in such mixtures. In addition, the repercussions of structural crossover on the real-space structure of a binary fluid are analyzed. We suggest a relation between crossover and the lateral extension of networks containing only equally sized particles that are connected by nearest neighbor bonds. This is supported by Monte-Carlo simulations which are performed at different packing fractions and size ratios.

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530 Physik

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ISO 690BAUMGARTL, Jörg, Roel P. A. DULLENS, Marjolein DIJKSTRA, Roland ROTH, Clemens BECHINGER, 2007. Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres. In: Physical Review Letters. 2007, 98(19), 198303. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.98.198303
BibTex
@article{Baumgartl2007-04-03T08:26:02ZExper-39567,
  year={2007},
  doi={10.1103/PhysRevLett.98.198303},
  title={Experimental Observation of Structural Crossover in Binary Mixtures of Colloidal Hard Spheres},
  number={19},
  volume={98},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Baumgartl, Jörg and Dullens, Roel P. A. and Dijkstra, Marjolein and Roth, Roland and Bechinger, Clemens},
  note={Article Number: 198303}
}
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