| Issue |
Europhys. Lett.
Volume 76, Number 5, December 2006
|
|
|---|---|---|
| Page(s) | 919 - 925 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2006-10352-9 | |
| Published online | 25 October 2006 | |
Crossover from stationary to aging regime in glassy dynamics
Service de Physique Théorique, Orme des Merisiers, CEA Saclay 91191 Gif-sur-Yvette Cedex, France
Received:
30
June
2006
Accepted:
2
October
2006
We study the non-equilibrium dynamics of the spherical p-spin models in
the scaling regime near the plateau and derive the corresponding
scaling functions for the correlators. Our main result is that
the matching between different time regimes fixes the
aging function in the
aging regime to ![$h(t)=\exp[t^{1-\mu}]$](/articles/epl/abs/2006/23/epl9665/epl9665_tex_eq1.png)
. The
exponent μ is related to the one giving the length of the
plateau. Interestingly 
is quickly very small when one
goes away from the dynamic transition temperature in the glassy
phase. This sheds new light on the interpretation of
experiments and simulations where simple aging was found to be a
reasonable but not perfect approximation, which could be attributed
to the existence of a small but non-zero stretching exponent.
PACS: 75.10.Nr – Spin-glass and other random models / 61.20.Lc – Time-dependent properties; relaxation / 64.70.Pf – Glass transitions
© EDP Sciences, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.