| Issue |
Europhys. Lett.
Volume 72, Number 6, December 2005
|
|
|---|---|---|
| Page(s) | 1032 - 1038 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2005-10342-5 | |
| Published online | 25 November 2005 | |
Structure and relaxation dynamics of a colloidal gel
1
Dipartimento di Scienze Fisiche, Università di Napoli “Federico II” 80125 Napoli, Italy
2
Laboratoire des Colloïdes, Verres et Nanomatériaux, Université Montpellier 2 34095 Montpellier, France
Received:
6
July
2005
Accepted:
21
October
2005
Using molecular dynamics computer simulations, we investigate the structural and dynamical properties of a simple model for a colloidal gel at low volume fraction. We find that at low T the system forms an open percolating cluster, without any sign of phase separation. The nature of the relaxation dynamics strongly depends on the length scale/wave vector considered and can be directly related to the geometrical properties of the spanning cluster.
PACS: 82.70.Gg – Gels and sols / 82.70.Dd – Colloids / 64.70.Pf – Glass transitions
© EDP Sciences, 2005
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