| Issue |
Europhys. Lett.
Volume 53, Number 4, February 2001
|
|
|---|---|---|
| Page(s) | 511 - 517 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2001-00182-9 | |
| 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: sergio.ciliberto@ens-lyon.fr
Received:
27
July
2000
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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