Non-gaussian electrical fluctuations in a quasi-2d packing of metallic beads
arXiv:cond-mat/0001292 · doi:10.1209/epl/i2001-00136-9
Abstract
The electrical properties of a two-dimensional packing of metallic beads are studied. Small mechanical perturbations of the packing leads to giant electrical fluctuations. Fluctuations are found to be non-gaussian and seem to belong to Levy stable distributions. Anticorrelations have been also found for the sign of these fluctuations.
6 pages, 5 figures