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Proceedings Paper

Slow dynamics and aging in the two-dimensional Coulomb glass model
Author(s): Daniel R Grempel
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Paper Abstract

We investigate the dynamics of the 2D Coulomb glass model by Monte Carlo simulation. The system has a zero-temperature freezing transition signaled by an exponential divergence of the relaxation rate. At low enough temperatures the system may remain off-equilibrium on experimental timescales. In this regime the dynamics of charge fluctuations and the response of the system to random perturbations of the local potential exhibit aging. The fluctuation dissipation theorem is violated and aging is also observed in the electron diffusion. The relevance of these findings for recent transport experiments in Anderson-insulating films is pointed out.

Paper Details

Date Published: 25 May 2004
PDF: 9 pages
Proc. SPIE 5469, Fluctuations and Noise in Materials, (25 May 2004); doi: 10.1117/12.546466
Show Author Affiliations
Daniel R Grempel, CEA Saclay (France)

Published in SPIE Proceedings Vol. 5469:
Fluctuations and Noise in Materials
Dragana Popovic; Michael B. Weissman; Zoltan A. Racz, Editor(s)

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