2001/02/20 by Albert Toelle, A. Tölle · 5 citations
Chemical Engineering · Materials Science · Physics and Astronomy · #Glass properties and applications #Material Dynamics and Properties #Thermodynamic properties of mixtures #cond-mat.dis-nn #cond-mat.stat-mech
paper · pdf · doi:10.1088/0034-4885/64/11/203
79 pages, 44 figures, 7 tables, review on the total long term project, sub. to Rep. Prog. Phys
arxiv created 2001/02/20 · openalex publication_date 2001/10/24 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The van der Waals liquid ortho -terphenyl has long been used as a model system in the study of the glass transition. Motivated by mode-coupling theory, extensive experiments have been undertaken to monitor the onset of structural relaxation on microscopic time- and lengthscales. Using in particular quasielastic neutron scattering, the decay of density and tagged-particle correlations has been measured as a function of temperature, pressure and wavenumber. A consistent picture is developed, in which the mode-coupling singularity appears as a change of transport mechanism in the moderately viscous liquid, at temperatures far above the conventional (caloric) glass transition.