The activation energy of hopping transport with sequential correlations of hops due to Coulomb interactions
- 20 March 1983
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 16 (8) , 1459-1467
- https://doi.org/10.1088/0022-3719/16/8/015
Abstract
The authors study the effects of correlations in successive jumps on the reduction of the activation energy epsilon 3 in impurity conduction at low concentrations. These correlation effects are considered within a mean-field theory, and a dielectric approach is used. They find that epsilon 3 is reduced by about 30% with respect to previous calculations that do not include relaxation. The new value is in better agreement with the experimental results and with Monte Carlo calculations by Nguyen and co-workers (1979). Their value for intermediate compensation still exceeds experimental values by about 50%.Keywords
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