Quantitative results near the band edges of disordered systems

E. N. Economou, C. M. Soukoulis, M. H. Cohen, A. D. Zdetsis

Research output: Contribution to journalArticlepeer-review

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By combining the coherent-potential approximation, the potential-well analogy, and theories for the near tail in the density of states, we obtain, for the first time, explicitly quantitative results for the various quantities of interest near the band edges of disordered systems. These results exhibit a certain universality and can be expressed in terms of simple analytic functions, provided that disorder is not larger than about (1/5) of the bandwidth.

Original languageEnglish (US)
Pages (from-to)6172-6183
Number of pages12
JournalPhysical Review B
Issue number10
StatePublished - 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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