Volume 53, Number 4, February 2001
|Page(s)||511 - 517|
|Section||Condensed matter: structure, mechanical and thermal properties|
|Published online||01 December 2003|
Violation of the fluctuation-dissipation relation during the formation of a colloidal glass
Ecole Normale Supérieure de Lyon, Laboratoire de
Physique, CNRS UMR5672 46, Allée d'Italie, 69364 Lyon
Cedex 07, France
Corresponding author: email@example.com
Accepted: 11 December 2000
The relationship between the conductivity and the polarization noise is measured in a colloidal glass as a function of frequency in the range 1-40. It is found that at the beginning of the transition from a fluid-like sol to a solid-like colloidal glass the fluctuation-dissipation relation is strongly violated. The amplitude and the persistence time of this violation are decreasing functions of frequency. At the lowest frequencies of the measuring range it persists for times which are about of the time needed to form the colloidal glass. This phenomenology is quite close to the recent theoretical predictions done for the violation of the fluctuation-dissipation relation in glassy systems.
PACS: 64.70.Pf – Glass transitions / 05.20.-y – Classical statistical mechanics / 75.10.Nr – Spin-glass and other random models
© EDP Sciences, 2001
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