Clusters in Colloidal Systems (Articolo in rivista)

Type
Label
  • Clusters in Colloidal Systems (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/jp110048h (literal)
Alternative label
  • A. Fierro; T. Abete; A. Coniglio; A. de Candia (2011)
    Clusters in Colloidal Systems
    in The journal of physical chemistry. B
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. Fierro; T. Abete; A. Coniglio; A. de Candia (literal)
Pagina inizio
  • 7281 (literal)
Pagina fine
  • 7287 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 115 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 22 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [A. Fierro; A. Coniglio; A. de Candia] CNR, SPIN, I-80126 Naples, Italy; [T. Abete; A. Coniglio; A. de Candia] Univ Naples Federico II, Dept Phys, I-80126 Naples, Italy; [A. Coniglio; A. de Candia] INFN, I-80126 Naples, Italy (literal)
Titolo
  • Clusters in Colloidal Systems (literal)
Abstract
  • We study the dynamical properties of a model for charged colloidal particles, performing molecular dynamics simulations and observing the behavior of bond persistence functions, self-intermediate scattering functions at different wave vectors, and mean-square displacements of the particles, in three different regimes of the volume fraction. At the lowest volume fraction the system displays properties very similar to those of a gelling system, which can be interpreted in terms of the distribution of cluster sizes, with a peak in the dynamical susceptibility at the lowest wave vector. At the highest volume fraction, a percolating network of bonds is always present, and the system is strongly reminiscent of strong glasses, with the maximum in the dynamical susceptibility increasing when the temperature is lowered, and an Arrhenius dependence of the relaxation times. At intermediate volume fractions, a complex behavior is found, where both the distribution of cluster sizes and the intercluster correlations due to crowding are important. (literal)
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