Non-ohmic hopping conductivity in disordered systems
- 1 July 1993
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Part B
- Vol. 68 (1) , 47-54
- https://doi.org/10.1080/13642819308215281
Abstract
The electrical conductivity of disordered systems in the non-ohmic regime has been calculated using the Green function formalism of Movaghar et al. The isotropic and directed hopping cases are treated. For the temperature-related behaviour, we find as particular cases the Mott ¼ and the ½ laws, and for the electrical-field-related behaviour, we find a general form that agrees with expressions in the literature.Keywords
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