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Plasmons in Randomly Layered Systems
Author(s) -
Zimpel M.,
Barnas J.
Publication year - 1989
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.2221550228
Subject(s) - plasmon , quasiparticle , condensed matter physics , physics , materials science , quantum mechanics , superconductivity
Collective electronic excitations (plasmons) in layered structures with randomly distributed thicknesses are analysed theoretically in the classical approximation. The plasmon localization length λ and the density of plasmon states (DOS) are calculated numerically. Self‐averaged results are obtained for structures consisting of 10 5 to 10 6 elementary units. The dependence of λ and DOS on the disorder strength is also discussed.