Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

New experimental results of low-frequency Raman scattering from different glasses are presented. They are compared to the vibration density of states obtained from inelastic neutron scattering to deduce the light-vibration coupling coefficient C(ω) as a function of the vibration frequency. It was found that C(ω)∝ω2 at very low frequency ω<20 cm−1 in inorganic glasses (SiO2,B2O3) and that C(ω)∝ω at low frequency in polymer glasses and in inorganic glasses for ω≳20 cm−1. Our experimental results for glasses are interpreted by assuming no correlation at very low-frequency and only radial correlation at low-frequency. A full correlation would exist in silica-aerogels in which the effect of random fluctuations would be negligible.

Bibliography

Achibat, T., Boukenter, A., & Duval, E. (1993). Correlation effects on Raman scattering from low-energy vibrational modes in glasses. II. Experimental results. The Journal of Chemical Physics, 99(3), 2046–2051.

Authors 3
  1. T. Achibat (first)
  2. A. Boukenter (additional)
  3. E. Duval (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 8:28 a.m.)
Deposited 1 year, 6 months ago (Feb. 10, 2024, 5:44 p.m.)
Indexed 1 year, 1 month ago (July 29, 2024, 1:09 p.m.)
Issued 32 years, 1 month ago (Aug. 1, 1993)
Published 32 years, 1 month ago (Aug. 1, 1993)
Published Print 32 years, 1 month ago (Aug. 1, 1993)
Funders 0

None

@article{Achibat_1993, title={Correlation effects on Raman scattering from low-energy vibrational modes in glasses. II. Experimental results}, volume={99}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.465268}, DOI={10.1063/1.465268}, number={3}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Achibat, T. and Boukenter, A. and Duval, E.}, year={1993}, month=aug, pages={2046–2051} }