Sound attenuation in an unexplored frequency region: Brillouin Ultraviolet Light Scattering measurements in v-SiO2

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dc.creatorBenassi, P.
dc.creatorCaponi, S.
dc.creatorEramo, R.
dc.creatorFontana, A.
dc.creatorGiugni, A.
dc.creatorNardone, M.
dc.creatorSampoli, M.
dc.creatorViliani, G.
dc.date2004-07-19
dc.date.accessioned2026-07-07T02:59:15Z
dc.date.available2026-07-07T02:59:15Z
dc.descriptionWe report Ultraviolet Brillouin light scattering experimental data on v-SiO2 in an unexplored frequency region, performed with a newly available spectrometer up to exchanged wavevector q values of 0.075 nm^{-1}, as a function of temperature. The measured attenuation scales on visible data following a q^2 behavior and is temperature-dependent. Such temperature dependence is found in a good agreement with that measured at lower q, suggesting that its origin is mainly due to a dynamic attenuation mechanism. The comparison between the present data with those obtained by Inelastic X-ray Scattering suggests the existence of a cross-over to a different attenuation regimes.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0407476
dc.identifierhttp://arxiv.org/abs/cond-mat/0407476
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/24443
dc.subjectDisordered Systems and Neural Networks
dc.titleSound attenuation in an unexplored frequency region: Brillouin Ultraviolet Light Scattering measurements in v-SiO2
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