Abeles, Pinch, and Gittelman have fitted the conductivity of annealed W-Al2O3 granular metal films to a percolation threshold. They find C*=0.470.05. By numerical simulation of conductivity in resistor networks we demonstrate that these conductivity data can be explained if there is a bias towards the formation of isolated metallic regions.
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics