Point-to-set lengths, local structure, and glassiness.

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2016-09

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Abstract

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.

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10.1103/PhysRevE.94.032605

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Yaida, Sho, Ludovic Berthier, Patrick Charbonneau and Gilles Tarjus (2016). Point-to-set lengths, local structure, and glassiness. Phys Rev E, 94(3-1). p. 032605. 10.1103/PhysRevE.94.032605 Retrieved from https://hdl.handle.net/10161/15329.

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Scholars@Duke

Charbonneau

Patrick Charbonneau

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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