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Conductivity and Dielectric Constant of Interacting Anderson Localized Systems at T = 0
Author(s) -
Chicón R.
Publication year - 1988
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.2221470137
Subject(s) - condensed matter physics , dielectric , coulomb , electron , conductivity , constant (computer programming) , electrical resistivity and conductivity , physics , density of states , dielectric function , kramers–kronig relations , absorption (acoustics) , kubo formula , quantum mechanics , optics , refractive index , computer science , programming language
The electrical conductivity as a function of frequency at zero temperature is calculated for a system of interacting electrons with strongly localized wave functions due to disorder. The calculations are concentrated on the contribution from resonant phononless absorption by singly occupied pairs at low frequencies, where the Coulomb gap in the density of states is important. The static dielectric constant is also obtained using the Kramers‐Kronig relations.