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Asymtotic Medium Concept Applied to Correlated Point Scatterers in the Weak‐Scattering Limit
Author(s) -
Solbrig H.
Publication year - 1984
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221230126
Subject(s) - scattering , limit (mathematics) , shell (structure) , physics , reflection (computer programming) , refractive index , mathematical analysis , point (geometry) , function (biology) , refraction , computational physics , mathematics , optics , geometry , materials science , evolutionary biology , computer science , composite material , biology , programming language
The concept of an asymptotic medium with a superimposed inhomogeneity shell about the source point is employed as an interpretation scheme for multiple‐scattering approximations to the averaged Green function. Including third‐order scattering (finite‐ranged pair correlation), analytical expressions are obtained for the index of refraction of the asymptotic medium and the reflection and transmission coefficients of the inhomogeneity shell as well as for the electronic density of states.