Scattering of plane-wave atomic vibrations in disordered structures

Details Scattering of plane-wave atomic vibrations in disordered structures Scattering of plane-wave atomic vibrations in disordered structures

1999-07-16

arxiv.org/abs/cond-mat/9907238v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

20 pages, 8 figures, Proceedings of the summer school (Cargese, 1999): Physics of Glasses: Structure and Dynamics, Eds P. Jund

Scientific paper

10.1063/1.1301458

A theoretical analysis of the scattering of plane-wave atomic excitations in disordered solids has been made in terms of the spectral densities. Hybridization between transverse and longitudinal waves of approximately the same frequency is demonstrated. The analytic results agree well with the results obtained from computer simulation for a toy linear zig-zag chain model and a model of vitreous silica constructed by molecular dynamics.

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