Experimental observation of structural crossover in binary mixtures of colloidal hard spheres

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dc.creatorBaumgartl, Jörg
dc.creatorDullens, Roel P. A.
dc.creatorDijkstra, Marjolein
dc.creatorRoth, Roland
dc.creatorBechinger, Clemens
dc.date2007-04-03
dc.date2007-10-04
dc.date.accessioned2026-07-07T08:33:55Z
dc.date.available2026-07-07T08:33:55Z
dc.descriptionUsing 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.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0704.0343
dc.identifierhttp://arxiv.org/abs/0704.0343
dc.identifierPhys. Rev. Lett. 98, 198303 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.198303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139260
dc.subjectSoft Condensed Matter
dc.subjectDisordered Systems and Neural Networks
dc.titleExperimental observation of structural crossover in binary mixtures of colloidal hard spheres
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