Limit current density in 2D metallic granular packings
arXiv:cond-mat/0302288 · doi:10.1140/epjb/e2003-00212-6
Abstract
The electrical properties 2D of packed metallic pentagons have been studied. The characterization of such metallic pentagon heaps (like $i-V$ measurements) has been achieved and has allowed to point out two distinct conduction regimes. They are separated by a transition line along which the system exhibits a memory effect behavior due to the irreversible improvement of electrical contacts between pentagons (hot spots). A limit current density has been found.
4 pages, 6 figures