Lattice dynamics of a disordered solid-solid interface

Fagas, G. and Kozorezov, A. G. and Lambert, C. J. and Wigmore, J. K. and Peacock, A. and Poelaert, A. and den Hartog, R. (1999) Lattice dynamics of a disordered solid-solid interface. Physical review B, 60 (9). pp. 6459-6464. ISSN 0163-1829

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Abstract

Generic properties of elastic phonon transport at a disordered interface are studied. The results show that phonon transmittance is a strong function of frequency and the disorder correlation length. At frequencies lower than the van Hove singularity the transmittance at a given frequency increases as the correlation length decreases. At low frequencies, this is reflected by different power laws for phonon conductance across correlated and uncorrelated disordered interfaces which are in approximate agreement with the perturbation theory of an elastic continuum. These results can be understood in terms of simple mosaic and two-color models of the interface.

Item Type:
Journal Article
Journal or Publication Title:
Physical review B
Uncontrolled Keywords:
/dk/atira/pure/core/keywords/physics
Subjects:
?? physicsqc physics ??
ID Code:
58088
Deposited By:
Deposited On:
23 Oct 2012 08:50
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2024 13:13