Hopping transport and electrical conductivity in one-dimensional systems with off-diagonal disorder
| Autor: | Song-shan Ma, Hui Xu, Yan-feng Li, Zhao-quan Song |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Electron mobility
Materials science Condensed matter physics Diagonal Field dependence Electron Conductivity Condensed Matter Physics Condensed Matter::Disordered Systems and Neural Networks Variable-range hopping Electronic Optical and Magnetic Materials Delocalized electron Electrical resistivity and conductivity Electrical and Electronic Engineering |
| Zdroj: | Physica B: Condensed Matter. 398:55-59 |
| ISSN: | 0921-4526 |
| DOI: | 10.1016/j.physb.2007.04.067 |
| Popis: | In this paper, we present a model to describe hopping transport and electrical conductivity of one-dimensional systems with off-diagonal disorder, in which electrons are transported via hopping between localized states. We find that off-diagonal disorder leads to delocalization and drastically enhances the electrical conductivity of systems. The model also quantitatively explains the temperature and electrical field dependence of the conductivity in one-dimensional systems with off-diagonal disorder. In addition, we also show the dependence of the conductivity on the strength of off-diagonal disorder. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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