title: Rayleigh-Brillouin light-scattering study of a simple glass former: evidence of locally favored structures.
abstract: The Rayleigh-Brillouin light scattering is studied in the glass-forming picoline with emphasis to the temperature dependence of the Landau-Placzek ratio. It was found that the Landau-Placzek ratio is in good agreement with the theoretical prediction at T>T(A), where TA is the temperature of transition from an Arrhenius-like to a non-Arrhenius behavior for the α-relaxation time dependence on temperature. Below T(A) the Landau-Placzek ratio exceeds significantly the theoretical prediction. The finding is interpreted as the evidence of the locally favored structures, which presence in an equilibrium glass-forming liquid below T(A).
authors.affiliation: Institute of Automation and Electrometry, Russian Academy of Sciences, Novosibirsk 630090, Russia.
authors.forename: V A
authors.initials: VA
authors.lastname: Popova
authors.forename: A M
authors.initials: AM
authors.lastname: Pugachev
authors.forename: N V
authors.initials: NV
authors.lastname: Surovtsev