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Updated: Jun 4, 2026

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
Published on: January 26, 2016
Single-exponential activation behavior behind the super-Arrhenius relaxations in glass-forming liquids
Lianwen Wang1, Jiangong Li, Hans-Jörg Fecht
1Institute of Materials Science and Engineering, Lanzhou University, Lanzhou 730000, People's Republic of China. lwwang@lzu.edu.cn
Abstract:
The reported relaxation time for several typical glass-forming liquids was analyzed by using a kinetic model for liquids which invoked a new kind of atomic cooperativity--thermodynamic cooperativity. The broadly studied 'cooperative length' was recognized as the kinetic cooperativity. Both cooperativities were conveniently quantified from the measured relaxation data. A single-exponential activation behavior was uncovered behind the super-Arrhenius relaxations for the liquids investigated. Hence the mesostructure of these liquids and the atomic mechanism of the glass transition became clearer.
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