Onset Temperature of Slow Dynamics in Glass Forming Liquids
Srikanth Sastry
Abstract
The behaviour of a model glass forming liquid is analyzed for a range of densities, with a focus on the temperature interval where the liquid begins to display non-Arrhenius temperature dependence of relaxation times. Analyzing the dynamics along with properties of local potential energy minima sampled by the liquid, a crossover or onset temperature Ts is identified below which the liquid manifests slow dynamics, and a change in the character of typical local potential energy minima.
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