Multiple-scattering effects on incoherent neutron scattering in glasses and viscous liquids

Details Multiple-scattering effects on incoherent neutron scattering in glasses and viscous liquids Multiple-scattering effects on incoherent neutron scattering in glasses and viscous liquids

2000-02-23

arxiv.org/abs/cond-mat/0002363v2

Phys. Rev. E 62, 6531 (2000)

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevE.62.6531

Incoherent neutron scattering experiments are simulated for simple dynamic models: a glass (with a smooth distribution of harmonic vibrations) and a viscous liquid (described by schematic mode-coupling equations). In most situations multiple scattering has little influence upon spectral distributions, but it completely distorts the wavenumber-dependent amplitudes. This explains an anomaly observed in recent experiments.

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