Glassy dynamics, aging and thermally activated avalanches in interface pinning at finite temperatures
arXiv:cond-mat/0603679 · doi:10.1209/epl/i2006-10316-1
Abstract
We study numerically the out-of-equilibrium dynamics of interfaces at finite temperatures when driven well below the zero-temperature depinning threshold. We go further than previous analysis by including the most relevant non-equilibrium correction to the elastic Hamiltonian. We find that the relaxation dynamics towards the steady-state shows glassy behavior, aging and violation of the fluctuation-dissipation theorem. The interface roughness exponent alpha approx 0.7 is found to be robust to temperature changes. We also study the instantaneous velocity signal in the low temperature regime and find long-range temporal correlations. We argue 1/f-noise arises from the merging of local thermally-activated avalanches of depinning events.
4 pages, 4 figures
References in corpus (21)
- Energy flow, partial equilibration and effective temperatures in systems with slow dynamics
- Domain wall creep in epitaxial ferroelectric Pb(Zr0.2Ti0.8)O3 thin films
- Creep and depinning in disordered media
- Imbibition in Disordered Media
- Experiments in vortex avalanches
- Renormalization of pinned elastic systems: how does it work beyond one loop ?
- Monte-Carlo simulations of the violation of the fluctuation-dissipation theorem in domain growth processes
- Depinning of elastic manifolds
- Driven Depinning in Anisotropic Media
- Origin of the roughness exponent in elastic strings at the depinning threshold
- Hysteretic dynamics of domain walls at finite temperatures
- Creep motion of an elastic string in a random potential
- A Simple Model of Superconducting Vortex Avalanches
- Large time off-equilibrium dynamics of a manifold in a random potential
- Glassy Motion of Elastic Manifolds
- Can non-linear elasticity explain contact-line roughness at depinning?
- Aging Dynamics of an Elastic String Diffusing in a Disordered Media
- Functional Renormalization for pinned elastic systems away from their steady states
- Broad relaxation spectrum and the field theory of glassy dynamics for pinned elastic systems
- Aging in the glass phase of a 2D random periodic elastic system
- Hysteretic creep of elastic manifolds
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