Mode-coupling crossover in viscous toluene revealed by neutron and light scattering

作者： J. Wuttke , M. Seidl , G. Hinze , A. Tölle , W. Petry

关键词: Quasielastic neutron scattering 、 Small-angle neutron scattering 、 Neutron 、 Scattering 、 Mode coupling 、 Light scattering 、 Molecular physics 、 Power law 、 Wavenumber 、 Physics 、 Optics

摘要: The dynamics of supercooled toluene, studied in a GHz-THz range by incoherent neutron and depolarized light scattering, is found to be full accord with mode coupling predictions. Around the susceptibility minimum, spectra are wavenumber independent proportional scattering data; fast β-relaxation scaling law applies; amplitude frequency diverge power laws that extrapolate towards crossover temperature Tc K.