Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1545618 | Physica E: Low-dimensional Systems and Nanostructures | 2010 | 8 Pages |
Abstract
We study the structure of the electronic states and the transport properties of a Kronig-Penney model with weak compositional and structural disorder. Using a perturbative approach we obtain an analytical expression for the localisation length which is valid for disorder with arbitrary correlations. We show how to generate disorder with self- and cross-correlations and we analyse both the known delocalisation effects of the long-range self-correlations and new effects produced by cross-correlations. We finally discuss how both kinds of correlations alter the transport properties in Kronig-Penney models of finite size.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
J.C. Hernández-Herrejón, F.M. Izrailev, L. Tessieri,