Tunneling and percolation in metal-insulator composite materials

By D. Toker, D. Azulay, N. Shimoni, I. Balberg, O. Millo. 2003

200 citations recorded by the source corpus.

In many composites, the electrical transport takes place only by tunneling between isolated particles. For a long time, it was quite a puzzle how, in spite of the incompatibility of tunneling and percolation networks, these composites conform well to percolation theory. We found, by conductance atomic force microscopy measurements on granular metals, that it is the apparent cut off of the tunneling to non-nearest-neighbors that brings about this behavior. In particular, the percolation cluster is shown to consist of the nearest-neighbors subnetwork of the full tunneling network.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics

View Paper: https://www.semanticscholar.org/paper/39b16fbaf762aadda6373d007702d0bd23894994

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Citations in the corpus

• Flexible Tactile Sensing Based on Piezoresistive Composites: A Review (2014, background): “where t is the critical exponent that determines the trend of the function around the critical concentration [76].”