Viscoelastic properties of attractive and repulsive colloidal glasses (Articolo in rivista)

Type
Label
  • Viscoelastic properties of attractive and repulsive colloidal glasses (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0953-8984/17/25/L05 (literal)
Alternative label
  • Antonio M. Puertas (1); Emanuela Zaccarelli (2); Francesco Sciortino (2) (2005)
    Viscoelastic properties of attractive and repulsive colloidal glasses
    in Journal of physics. Condensed matter (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Antonio M. Puertas (1); Emanuela Zaccarelli (2); Francesco Sciortino (2) (literal)
Pagina inizio
  • L271 (literal)
Pagina fine
  • L277 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/0953-8984/17/25/L05/ (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 17 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 7 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 25 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Group of Complex Fluids Physics, Department of Applied Physics, University of Almeria, 04120 Almeria, Spain (2) Dipartimento di Fisica and INFM Udr and SOFT: Complex Dynamics in Structured Systems, Universita' di Roma La Sapienza, Piazzale Aldo Moro 5, I-00185 Rome, Italy (literal)
Titolo
  • Viscoelastic properties of attractive and repulsive colloidal glasses (literal)
Abstract
  • We report a numerical study of the shear viscosity and the frequency dependent elastic moduli close to dynamical arrest for a model of short range at tractive colloids, both for the repulsive and the attractive glass transition. Calculating the stress autocorrelation functions, we find that density fluctuations of wavevectors close to the first peak in the structure factor control the viscosity rise on approaching the repulsive glass, while fluctuations of larger wavevectors control the viscosity close to the attractive glass. On approaching the glass transition, the viscosity diverges with a power law with the same exponent as the density autocorrelation time. (literal)
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