Demmel F1, Szubrin D2, Pilgrim WC2, De Francesco A3, Formisano F3.
Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Jul;92(1):012307. Epub 2015 Jul 9.Inelastic neutron scattering was applied to measure the acoustic-type excitations in the molten alkali halide rubidium bromide. For molten RbBr neutron scattering is mainly sensitive to the number density fluctuation spectrum and is not influenced by charge fluctuations. Utilizing a dedicated Brillouin scattering spectrometer, we focused on the small-wave-vector range. From inelastic excitations in the spectra a dispersion relation was obtained, which shows a large positive dispersion effect. Read More