Author:
Rumyantsev V V,Fedorov S A,Gumennyk K V,Paladyan Yu A,Zavorotnev Yu D
Abstract
Abstract
The virtual crystal approximation is used to study the specifics of propagation of acoustic excitations through a non-ideal one-dimensional superlattice. Numerical modeling is performed to evaluate the dependence of the lowermost acoustic band gap in a two-sublattice phonon crystal (disordered in composition and widths of constituent layers) on impurity layer concentration.
Subject
General Physics and Astronomy