Competing interactions in arrested states of colloidal clays (Articolo in rivista)

Type
Label
  • Competing interactions in arrested states of colloidal clays (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevLett.104.085701 (literal)
Alternative label
  • Ruzicka, B.; Zulian, L.; Zaccarelli, E.; Angelini, R.; Sztucki, M.; Moussaid, A.; Ruocco, G. (2010)
    Competing interactions in arrested states of colloidal clays
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ruzicka, B.; Zulian, L.; Zaccarelli, E.; Angelini, R.; Sztucki, M.; Moussaid, A.; Ruocco, G. (literal)
Pagina inizio
  • 085701 (literal)
Pagina fine
  • 085705 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://prl.aps.org/abstract/PRL/v104/i8/e085701 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 104 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 4 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 8 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • [Ruzicka, Zaccarelli, Angelini, Ruocco] SOFT INFM-CNR and Dipartimento di Fisica, Sapienza Universita` di Roma, I-00185, Italy; [Zulian] ISMAC-CNR via Bassini 15, 20133 Milano, Italy; [Sztucki, Moussaid] European Synchrotron Radiation Facility. Boite Postale 220, F-38043 Grenoble Cedex, France (literal)
Titolo
  • Competing interactions in arrested states of colloidal clays (literal)
Abstract
  • Using experiments, theory and simulations, we show that the arrested state observed in a colloidal clay at high concentrations is stabilized by screened Coulomb repulsion (Wigner glass). Dilution experiments allow us to distinguish this disconnected state, which melts upon addition of water, from a lowconcentration gel state, which does not melt. Theoretical modeling and simulations at high concentrations reproduce the measured small angle x-ray scattering static structure factors and confirm the long-range electrostatic nature of the arrested structure. These findings are attributed to the different time scales controlling the competing attractive and repulsive interactions. (literal)
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