Localization in two- and three-dimensional systems away from the band center

作者: A. D. Zdetsis , C. M. Soukoulis , E. N. Economou , Gary S. Grest

DOI: 10.1103/PHYSREVB.32.7811

关键词: Electronic structureDiagonalZero (complex analysis)Center (group theory)Scaling lawQuantum mechanicsOrder (group theory)Edge (geometry)Physics

摘要: Extensive numerical results using finite-size-scaling methods for two-dimensional (2D) and three-dimensional (3D) disordered systems are presented eigenenergies E different from zero. Single-parameter scaling law is satisfied all of our in both 2D 3D systems. In we find only localized states, however, the localization length does not have its maximum at band center. 3D, dependence mobility edge on strength diagonal order obtained. These found to be satisfactory agreement with predictions coherent-potential approximation potential-well analogy.

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