| Issue |
Europhys. Lett.
Volume 54, Number 5, June 2001
|
|
|---|---|---|
| Page(s) | 599 - 604 | |
| Section | Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics | |
| DOI | https://doi.org/10.1209/epl/i2001-00108-7 | |
| Published online | 01 December 2003 | |
Activated-like hopping transition in weakly vibrated granular media
Institut de Génie Atomique, Département de Physique, Ecole Polytechnique
Fédérale de Lausanne - CH-1015 Lausanne, Switzerland
Received:
21
December
2000
Accepted:
26
March
2001
The slow dynamics of a weakly vibrated granular medium is investigated
using a low-frequency forced torsion pendulum method. A loss factor
peak is observed in the pendulum response (or the granular
susceptibility) as a function of the vibration intensity or the
forcing frequency. The position of the peak follows an Arrhenius-like
behaviour and the data can be described as an activated hopping
process. The peak can be seen as a vibration-induced glass-like
transition between a low-
jammed phase and the high-
fluid-like phase.
PACS: 45.70.-n – Granular systems / 05.70.Ln – Nonequilibrium and irreversible thermodynamics / 64.70.Pf – Glass transitions
© EDP Sciences, 2001
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