Linking dynamical heterogeneity to static amorphous order

Abstract

Glass-forming liquids grow dramatically sluggish upon cooling. This slowdown has long been thought to be accompanied by a growing correlation length. Characteristic dynamical and static length scales, however, have been observed to grow at different rates, which perplexes the relationship between the two and with the slowdown. Here, we show the existence of a direct link between dynamical sluggishness and static point-to-set correlations, holding at the local level as we probe different environments within a liquid. This link, which is stronger and more general than that observed with locally preferred structures, suggests the existence of an intimate relationship between structure and dynamics in a broader range of glass-forming liquids than previously thought.

8 pages, 3 figures; v4: one cavity data point (T=0.51, R=3.2) added. Data relevant to this work can be accessed at http://dx.doi.org/10.7924/G8VD6WC5

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Cited by in corpus (6)

• The race to the bottom: approaching the ideal glass?
• Locally favoured structures and dynamic length scales in a simple glass-former
• Real Space Renormalization Group Theory of Disordered Models of Glasses
• Selecting Relevant Structural Features for Glassy Dynamics by Information Imbalance
• Inferring the particle-wise dynamics of amorphous solids from the local structure at the jamming point
• Static self-induced heterogeneity in glass-forming liquids: Overlap as a microscope