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Journal of Applied Sciences
  Year: 2010 | Volume: 10 | Issue: 22 | Page No.: 2929-2934
DOI: 10.3923/jas.2010.2929.2934
 
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Stretched-exponential Localization Induced by Electric Field in Disordered System with Correlated

A. Yedjour and F. Hamdache

Abstract:
The purpose of this study was to investigate the transport properties of a random dimer model in 1D. A Kronig-Penney model with δ-peak potentials is used to examine how the resonance energy is affected by the electric field. We discussed the influence of an electric field on the nature of the electronic states and compared the result to the case without field. We found that there are important differences, mainly for a large system size L. Localized wave functions have been obtained at particular energies which make transition between extended and stretched-exponential localized states. The most important conclusion so obtained is that the electric field applied to such systems suppresses progressively the effect of the correlation, the transmission coefficient decreases leading to the absence of transport in this kind of electrified chains.
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How to cite this article:

A. Yedjour and F. Hamdache, 2010. Stretched-exponential Localization Induced by Electric Field in Disordered System with Correlated. Journal of Applied Sciences, 10: 2929-2934.

DOI: 10.3923/jas.2010.2929.2934

URL: https://scialert.net/abstract/?doi=jas.2010.2929.2934

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