We present a detailed Raman scattering study of the boson peak evolution in vitreous silica as a function of density, from the normal one up to ~ 22% of densification. We show that the distribution of low frequency modes in the boson peak range does not change as a function of density, at least until the densification process starts to modify the glassy network structure from a fourfold coordinated structure into a sixfold coordinated one.
Effects of permanent densification on the vibrational density of states of vitreous silica / Zanatta, Marco; Fontana, Aldo; Rossi, Flavio; E., Gilioli. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - STAMPA. - 357:8-9(2011), pp. 1892-1894.
Effects of permanent densification on the vibrational density of states of vitreous silica
Zanatta, Marco;Fontana, Aldo;Rossi, Flavio;
2011-01-01
Abstract
We present a detailed Raman scattering study of the boson peak evolution in vitreous silica as a function of density, from the normal one up to ~ 22% of densification. We show that the distribution of low frequency modes in the boson peak range does not change as a function of density, at least until the densification process starts to modify the glassy network structure from a fourfold coordinated structure into a sixfold coordinated one.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
