TY - JOUR AU - Ngai, K. L. AU - Lunkenheimer, P. AU - León Yebra, Carlos AU - Schneider, U. AU - Brand, R. AU - Lodl, A. PY - 2001 DO - 10.1063/1.1381054 SN - 0021-9606 UR - https://hdl.handle.net/20.500.14352/59632 T2 - Journal of chemical physics AB - Previous dielectric relaxation measurements of glycerol and propylene carbonate and new results on propylene glycol performed below the conventional glass transition temperatures T_(g) after long periods of aging all show that the excess wing (a... LA - eng M2 - 1405 PB - American Institute of Physics KW - Dielectric alpha-relaxation KW - Supercooled liquids KW - Forming liquids KW - Propylene carbonate KW - Secondary relaxations KW - Kohlrausch exponent KW - Coupling model KW - Transition KW - Dynamics KW - Spectroscopy. TI - Nature and properties of the Johari-Goldstein β-relaxation in the equilibrium liquid state of a class of glass-formers TY - journal article VL - 115 ER -