| Numéro |
J. Phys. Colloques
Volume 42, Numéro C6, Décembre 1981
International Conference on Phonon Physics
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|---|---|---|
| Page(s) | C6-125 - C6-127 | |
| DOI | https://doi.org/10.1051/jphyscol:1981637 | |
International Conference on Phonon Physics
J. Phys. Colloques 42 (1981) C6-125-C6-127
DOI: 10.1051/jphyscol:1981637
Laboratoire de Spectrometrie Rayleigh Brillouin (ERA 460), Université des Sciences et Techniques du Languedoc, Place E. Bataillon, 34060 Montpellier Cedex, France
J. Phys. Colloques 42 (1981) C6-125-C6-127
DOI: 10.1051/jphyscol:1981637
PHONON DAMPING IN CRYSTALLINE AND AMORPHOUS SOLIDS AT HYPERSONIC FREQUENCIES
R. Vacher et J. PelousLaboratoire de Spectrometrie Rayleigh Brillouin (ERA 460), Université des Sciences et Techniques du Languedoc, Place E. Bataillon, 34060 Montpellier Cedex, France
Abstract
We present new Brillouin scattering measurements, for temperature ranging from 1 K to room temperature in a broad range of insulating solids (crystalline and amorphous solids). We analyse the temperature dependence of the attenuation of longitudinal phonons (frequency higher than 15 GHz) on the basis of the physical processes responsible for the phonon damping.