Ageing dynamics of translational and rotational diffusion in a colloidal glass

S. Jabbari-Farouji, E. Eiser, G.H. Wegdam, D. Bonn

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28 Citations (Scopus)

Abstract

We study the dynamics of translational and rotational diffusion during the ageing of a colloidal glass of Laponite using polarized and depolarized dynamic light scattering. The dynamics are qualitatively similar between the two degrees of freedom. The short-time diffusion is independent of the time elapsed since the sample preparation. The intermediate- and long-time diffusion, on the other hand, slows down by several orders of magnitude during the ageing. The slowing down of the rotational diffusion is found to be much faster than that of the translational diffusion.
Original languageEnglish
Pages (from-to)L471-L477
JournalJournal of Physics : Condensed Matter
Volume16
Issue number41
DOIs
Publication statusPublished - 2004

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