Point-to-set lengths, local structure, and glassiness.
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The growing sluggishness of glass-forming liquids is thought to be accompanied by growing structural order. The nature of such order, however, remains hotly debated. A decade ago, point-to-set (PTS) correlation lengths were proposed as measures of amorphous order in glass formers, but recent results raise doubts as to their generality. Here, we extend the definition of PTS correlations to agnostically capture any type of growing order in liquids, be it local or amorphous. This advance enables the formulation of a clear distinction between slowing down due to conventional critical ordering and that due to glassiness, and provides a unified framework to assess the relative importance of specific local order and generic amorphous order in glass formation.
Published Version (Please cite this version)10.1103/PhysRevE.94.032605
Publication InfoBerthier, Ludovic; Charbonneau, Patrick; Tarjus, Gilles; & Yaida, Sho (2016). Point-to-set lengths, local structure, and glassiness. Phys Rev E, 94(3-1). pp. 032605. 10.1103/PhysRevE.94.032605. Retrieved from http://hdl.handle.net/10161/15329.
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Associate Professor of Chemistry
Professor Charbonneau studies soft matter. His work combines theory and simulation to understand the glass problem, protein crystallization, microphase formation, and colloidal assembly in external fields.
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