2004/10/12 by C. Dreyfus, A. Le Grand, Jacek Gapiński +3 · 168 citations
Chemical Engineering · Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Chemistry #Condensed matter physics #Inverse #Inverse temperature #Liquid Crystal Research Advancements #Material Dynamics and Properties #Materials science #Mathematics #Physics #Relaxation (psychology) #Scaling #Statistical physics #Supercooling #Thermodynamic properties of mixtures #Thermodynamics #cond-mat.dis-nn
paper · pdf · doi:10.1140/epjb/e2004-00386-3
published in The European Physical Journal B 42(3), 309-319 (Springer Science+Business Media) · 25 pages 3 Tables, 10 Figures
arxiv created 2004/10/12 · openalex publication_date 2004/12/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
It was shown recently that the structural alpha-relaxation time tau of supercooled o-terphenyl depends on a single control parameter Gamma, which is the product of a function of density E(ro), by the inverse temperature T -1. We extend this finding to other fragile glassforming liquids using light-scattering data. Available experimental results do not allow to discriminate between several analytical forms of the function E(ro), the scaling arising from the separation of density and temperature in Gamma. We also propose a simple form for tau(Gamma), which depends only on three material-dependent parameters, reproducing relaxation times over 12 orders of magnitude.