Fluctuation-Induced Tunneling Conduction in Carbon-Polyvinylchloride Composites
- 1 May 1978
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 40 (18) , 1197-1200
- https://doi.org/10.1103/physrevlett.40.1197
Abstract
We present evidence that in carbon-polyvinylchloride composites, consisting of aggregates of carbon spheres (100-400 Å) dispersed in the insulating matrix, the electrical conductivity can be ascribed to a novel mechanism of tunneling with potential-barrier modulation by thermal fluctuations. Theoretical consideration of the tunneling-probability modification by thermal fluctuating electric field across tunnel junctions yields expressions for the temperature and the field dependences of the conductivity in excellent accord with experimental results.Keywords
This publication has 12 references indexed in Scilit:
- High-field conductivity in SnO2 glazesJournal of Non-Crystalline Solids, 1978
- Structural and electrical properties of granular metal filmsAdvances in Physics, 1975
- Hopping Conductivity in Granular MetalsPhysical Review Letters, 1973
- Observation ofin Three-Dimensional Energy-Band TailsPhysical Review Letters, 1973
- Voltage-Induced Tunneling Conduction in Granular Metals at Low TemperaturesPhysical Review Letters, 1972
- Hopping Conductivity in Disordered SystemsPhysical Review B, 1971
- Conduction in non-crystalline materialsPhilosophical Magazine, 1969
- Electrical Conduction Mechanism in Ultrathin, Evaporated Metal FilmsJournal of Applied Physics, 1962
- Non-linear thermal fluctuations in a diodePhysica, 1960
- Thermal Conductivity, Electrical Resistivity, and Thermoelectric Power of GraphitePhysical Review B, 1953