Electron delocalization and multifractal scaling in electrified random chains

Details Electron delocalization and multifractal scaling in electrified random chains Electron delocalization and multifractal scaling in electrified random chains

1999-08-31

arxiv.org/abs/cond-mat/9908472v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

5 pages, 5 figures, To appear in Physics Letters A

Scientific paper

10.1016/S0375-9601(99)00498-3

Electron localization property of a random chain changing under the influence of a constant electric field has been studied. We have adopted the multifractal scaling formalism to explore the possible localization behavior in the system. We observe that the possible localization behavior with the increase of electric field is not systematic and shows strong instabilities associated with the local probability variation over the length of the chain. The multifractal scaling study captures the localization aspects along with strong instability when the electric field is changed by infinitesimal steps for a reasonably large system size.

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