Dynamics of uniaxial hard ellipsoids (Articolo in rivista)

Type
Label
  • Dynamics of uniaxial hard ellipsoids (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • De Michele, C; Schilling, R; Sciortino, F (2007)
    Dynamics of uniaxial hard ellipsoids
    in Physical review letters (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Michele, C; Schilling, R; Sciortino, F (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 98 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Univ Roma La Sapienza, INFM CRS Soft, I-00185 Rome, Italy; Johannes Gutenberg Univ Mainz, D-55099 Mainz, Germany (literal)
Titolo
  • Dynamics of uniaxial hard ellipsoids (literal)
Abstract
  • We study the dynamics of monodisperse hard ellipsoids via a new event-driven molecular dynamics algorithm as a function of volume fraction phi and aspect ratio X-0. We evaluate the translational D-trans and the rotational D-rot diffusion coefficients and the associated isodiffusivity lines in the phi-X-0 plane. We observe a decoupling of the translational and rotational dynamics which generates an almost perpendicular crossing of the D-trans and D-rot isodiffusivity lines. While the self-intermediate scattering function exhibits stretched relaxation, i.e., glassy dynamics, only for large phi and X-0 approximate to 1, the second order orientational correlator C-2(t) shows stretching only for large and small X-0 values. We discuss these findings in the context of a possible prenematic order driven glass transition. (literal)
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