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Phonon scattering by localized equilibria of nonlinear nearest-neighbor chains SCIE SCOPUS

Title
Phonon scattering by localized equilibria of nonlinear nearest-neighbor chains
Authors
Kim, SBaesens, CMacKay, RS
Date Issued
1997-11
Publisher
AMERICAN PHYSICAL SOC
Abstract
We study scattering of phonons by localized equilibria, for example, localized defects on nonlinear chains. We show that perfect transmission occurs af k=0 at the threshold for creation of localized modes and there exists a characteristic transition involving perfect transmission of long-wavelength phonons near the threshold. The theory is illustrated for the stationary case of a discrete kink on a translationally invariant Hamiltonian nearest neighbor chain, which is then generalized to any symmetric localized defects. The implications for discrete breathers are also discussed.
URI
https://oasis.postech.ac.kr/handle/2014.oak/12338
DOI
10.1103/PhysRevE.56.R4955
ISSN
1063-651X
Article Type
Article
Citation
PHYSICAL REVIEW E, vol. 56, no. 5, page. R4955 - R4958, 1997-11
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