Lattice-dynamical calculation of phonon scattering at a disordered interface

Details Lattice-dynamical calculation of phonon scattering at a disordered interface Lattice-dynamical calculation of phonon scattering at a disordered interface

1998-08-03

arxiv.org/abs/cond-mat/9808025v1

Physica B 263-264, 739-741 (1999)

Physics

Condensed Matter

to appear in Physica B, proceedings of the 9th international conference on phonon scattering

Scientific paper

10.1016/S0921-4526(98)01454-9

For an fcc crystal with central force interactions and separately for a scalar model on a square lattice, we compute exactly the phonon transmission coefficient $T(\omega)$ through a disordered planar interface between two identical semi - infinite leads. At high frequencies $T(\omega)$ exhibits a strong frequency dependence which is determined by the correlation length of the disorder.

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