Brillouin neutron scattering of v-GeO2
2005
The high-frequency dynamics of v-GeO2 was investigated by inelastic neutron scattering. Neutron experiments were carried out by exploiting both three-axis and time-of-flight techniques as most adequate to selectively access to a wider kinematics region or to higher-resolution characteristics. Experimental evidences of a highly dispersing inelastic peak, with an associated velocity of 3650 m s−1, and an almost dispersionless inelastic structure allowed us to definitely confirm the propagating nature of the high-frequency excitations. The measured data were compared with the results of a molecular-dynamics simulation.
Keywords:
- Neutron time-of-flight scattering
- Quasielastic neutron scattering
- Condensed matter physics
- Inelastic scattering
- Small-angle neutron scattering
- Dynamic structure factor
- Biological small-angle scattering
- Physics
- Neutron stimulated emission computed tomography
- Nuclear magnetic resonance
- Neutron scattering
- Optics
- Computational physics
- Quasielastic scattering
- Inelastic neutron scattering
- Correction
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