The propagational behavior of vibrational plane waves in a disordered medium has been analyzed theoretically in the time and frequency domains and in terms of the final scattered state in momentum space. Numerical results have been obtained for a normal-mode analysis of models of vitreous silica constructed by molecular dynamics, and also for a simple model of a zigzag chain of atoms with force-constant disorder.
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Taraskin et al. (2000) studied this question.
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