New temperature-dependent inelastic X-ray scattering (IXS) and Raman scattering (RS) data are compared with each other and with existing inelastic neutron scattering (INS) data in vitreous silica, in the 300 ± 1775K region. The IXS data show collective propagating excitations up to Q ˆ 3:5nm ¡ 1. The tem-perature behaviour of the excitations at Q ˆ 1:6nm ¡ 1 matches that of the boson peak found in INS and RS. This supports the fact that the acoustic origin of the excess of vibrational states gives rise to the boson peak in this glass. A peculiar characteristic of disordered solids, not present in their crystalline counterpart (Phillips 1981) , is an excess of low-frequency states with respect to the predictions of the Debye theory. Inelasti...
The dynamic structure factor of vitreous silica is measured at terahertz frequencies by inelastic sc...
Literature and unpublished neutron spectra of seven classical glass formers in the boson peak region...
Coherent inelastic neutron and light (Raman and Brillouin) scattering measurements are reported on s...
New temperature-dependent inelastic X-ray scattering (IXS) and Raman scattering (RS) data are compar...
Density dependence of low-energy dynamics of vitreous silica was investigated by means of neutron sc...
Raman scattering is used to investigate the vibrational spectrum of a sodium silicate glass around t...
We present new experimental results on the propagation and damping of the high frequency acoustic-li...
The propagation and damping of the acoustic excitations in vitreous silica is measured at terahertz ...
The propagation and damping of the acoustic excitations in vitreous silica is measured at terahertz ...
In this work we will face the problem of the vibrational properties of glasses focusing on the origi...
We have measured the low-frequency Raman scattering in neutron-irradiated quartz crystals with fou...
We present the results of extensive molecular dynamics computer simulations in which the high freque...
The position and strength of the boson peak in silica glass vary considerably with temperature T. Su...
Inelastic neutron, light, and x-ray scattering are used to investigate the vibrational density of st...
The results of a combined experimental study of the high-frequency acoustic dynamics and of the vibr...
The dynamic structure factor of vitreous silica is measured at terahertz frequencies by inelastic sc...
Literature and unpublished neutron spectra of seven classical glass formers in the boson peak region...
Coherent inelastic neutron and light (Raman and Brillouin) scattering measurements are reported on s...
New temperature-dependent inelastic X-ray scattering (IXS) and Raman scattering (RS) data are compar...
Density dependence of low-energy dynamics of vitreous silica was investigated by means of neutron sc...
Raman scattering is used to investigate the vibrational spectrum of a sodium silicate glass around t...
We present new experimental results on the propagation and damping of the high frequency acoustic-li...
The propagation and damping of the acoustic excitations in vitreous silica is measured at terahertz ...
The propagation and damping of the acoustic excitations in vitreous silica is measured at terahertz ...
In this work we will face the problem of the vibrational properties of glasses focusing on the origi...
We have measured the low-frequency Raman scattering in neutron-irradiated quartz crystals with fou...
We present the results of extensive molecular dynamics computer simulations in which the high freque...
The position and strength of the boson peak in silica glass vary considerably with temperature T. Su...
Inelastic neutron, light, and x-ray scattering are used to investigate the vibrational density of st...
The results of a combined experimental study of the high-frequency acoustic dynamics and of the vibr...
The dynamic structure factor of vitreous silica is measured at terahertz frequencies by inelastic sc...
Literature and unpublished neutron spectra of seven classical glass formers in the boson peak region...
Coherent inelastic neutron and light (Raman and Brillouin) scattering measurements are reported on s...