Pinning Susceptibility : A Novel Method to Study Growth of Amorphous Order in Glass-forming Liquids

Abstract

Existence and growth of amorphous order in supercooled liquids approaching glass transition is a subject of intense research. Even after decades of work, there is still no clear consensus on the molecular mechanisms that lead to a rapid slowing down of liquid dynamics approaching this putative transition. The existence of a correlation length associated with amorphous order has recently been postulated and also been estimated using multi-point correlation functions which cannot be calculated easily in experiments. Thus the study of growing amorphous order remains mostly restricted to systems like colloidal glasses and simulations of model glass-forming liquids. In this Letter, we propose an experimentally realizable yet simple correlation function to study the growth of amorphous order. We then demonstrate the validity of this approach for a few well-studied model supercooled liquids and obtain results which are consistent with other conventional methods.

6 page article, 7 page supplementary information

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Cited by in corpus (8)

• Block Analysis for the Calculation of Dynamic and Static Length Scales in Glass-Forming Liquids
• Effect of pinning on the yielding transition of amorphous solids
• Effects of random pinning on the potential energy landscape of a supercooled liquid
• Particle pinning suppresses spinodal criticality in the shear banding instability
• Enhanced Long Wavelength Mermin-Wagner Fluctuations in Active Crystals and Glasses
• Jammed solids with pins: Thresholds, Force networks and Elasticity
• Dynamics of Rod like Particles in Supercooled Liquids -- Probing Dynamic Heterogeneity and Amorphous Order
• Effect of heavy impurities on the dynamics of supercooled liquids