Infrared-optical properties of gas-evaporated gold blacks: Evidence for anomalous conduction on fractal structures
- 20 January 1986
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 56 (3) , 256-258
- https://doi.org/10.1103/physrevlett.56.256
Abstract
We analyze infrared-optical measurements on gas-evaporated gold blacks, performed by Harris many years ago. The data agree quantitatively with recent theories for anomalous conduction on fractal structures. The frequency-dependent conductivity obeys σ∝ below the relaxation frequency for electrons in a single particle. This is consistent with the conductivity exponents for percolation clusters and for diffusion-limited aggregates.
Keywords
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