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Spatial Charge Displaced by Impurity Scattering: T ‐Matrix Approach
Author(s) -
Brereton M. G.
Publication year - 1972
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.2220510228
Subject(s) - formalism (music) , impurity , scattering , charge (physics) , matrix (chemical analysis) , physics , mathematical physics , mathematics , quantum mechanics , chemistry , art , musical , chromatography , visual arts
The spatial charge displaced by an impurity is calculated using the T ‐matrix formalism together with the aid of Green's function theory. For a certain class of T ‐matrices an exact result, which explicitly obeys the Friedel sum rule is obtained. In other cases it represents an improved preasymptotic form.