Low-frequency Raman scattering in model disordered solids: percolators above threshold

O. Pilla, G. Viliani, R. Dell'Anna and G. Ruocco

Physica A: Statistical Mechanics and its Applications, 1997, vol. 247, issue 1, 23-29

Abstract: The Raman coupling coefficients of site- and bond-percolators at concentration higher than percolation threshold are computed for two scattering mechanisms: bond polarizability (BPOL) and dipole-induced-dipole (DID). The results show that DID does not follow a scaling law at low frequency, while in the case of BPOL the situation is less clear. The numerically computed frequency dependence in the case of BPOL, which can be considered a good scattering mechanism for a wide class of real glasses, is in semiquantitative agreement with experimental results.

Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:247:y:1997:i:1:p:23-29

DOI: 10.1016/S0378-4371(97)00391-9

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