Lattice-dynamical calculation of phonon scattering at a disordered interface

Authors
Fagas, G Kozorezov, AG Lambert, CJ Wigmore, JK
Citation
G. Fagas et al., Lattice-dynamical calculation of phonon scattering at a disordered interface, PHYSICA B, 263, 1999, pp. 739-741
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
263
Year of publication
1999
Pages
739 - 741
Database
ISI
SICI code
0921-4526(199903)263:<739:LCOPSA>2.0.ZU;2-2
Abstract
For an FCC crystal with central force interactions and separately for a sca lar model on a square lattice, we compute exactly the phonon transmission c oefficient T(omega) through a disordered planar interface between two ident ical semiinfinite leads. At high frequencies T(omega) exhibits a strong fre quency dependence which is determined by the correlation length of the diso rder. (C) 1999 Elsevier Science B.V. All rights reserved.