The temperature behaviour of the acoustic attenuation in La2O3-P2O5 glasses shows effects due to the thermally activated relaxations of structural defects in the 15-300 K range and to the phonon-assisted relaxation of two level systems (TLS) in the 1-15 K range.
Anelastic relaxations in rare earth phosphate glasses
CARINI, Giuseppe;CUTRONI, Maria;D'ANGELO, Giovanna;FEDERICO, Mauro;TRIPODO, Gaspare
1989-01-01
Abstract
The temperature behaviour of the acoustic attenuation in La2O3-P2O5 glasses shows effects due to the thermally activated relaxations of structural defects in the 15-300 K range and to the phonon-assisted relaxation of two level systems (TLS) in the 1-15 K range.File in questo prodotto:
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