T. Achibat et al., COMPARISON BETWEEN LIGHT AND NEUTRON INELASTIC SCATTERINGS - THE FREQUENCY LINEAR BEHAVIOR OF THE LIGHT VIBRATION COUPLING COEFFICIENT, Physica. A, 201(1-3), 1993, pp. 257-262
Comparison between low frequency Raman scattering and inelastic neutro
n scattering of amorphous polybutadiene shows that the light-vibration
coupling coefficient is linearly frequency dependent. This agrees wit
h earlier findings and we show here that it can be interpreted employi
ng two different correlation lengths for the angular and radial correl
ations, under plausible approximations.