TANAKA LAB. Physics of Soft Condensed Matter The University of Tokyo Graduate School of Engineering Department of Applied Physics The University of Tokyo Institute of Industrial Science Department of Fundamental Engineering
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Liquid-Liquid Transition in the Molecular LiquidCritical-Like Phenomena Associated with Liquid-Liquid TransitionLiquid-Liquid Transition under Spatial ConfinementSimple View of Waterlike AnomaliesTwo-Order-Parameter Description of Critical Phenomena and Phase Separation of Supercooled LiquidsTwo-Order-Parameter Description of Glass Transition Covering Its Strong to Fragile LimitFrustration on the Way to Crystallization in GlassGlass Transition in a Polydispersed Colloidal SystemGlass Transition and Jamming in a Driven Granular SystemAging and Shear Rejuvenation of a Colloidal GlassKinetics of Crystallization under a Glass Transition TemperatureViolation of the Incompressibility of Liquid by Simple Shear Flow

Two-Order-Parameter Description of Critical Phenomena and Phase Separation of Supercooled Liquids

Two-Order-Parameter Description of Critical Phenomena and Phase Separation of Supercooled Liquids Because of the isotropic and disordered nature of liquids, anisotropy hidden in many-body intermolecular interactions is usually neglected. Thus, it has been believed so far that the only order parameter required to describe a simple liquid is the density. Not accepting this common-sense view, we argue that a new additional order parameter, which represents the spontaneous formation of locally favoured structures, is necessary for the physical description of liquids near the lower stability limit. This model explains well two mysterious phenomena of supercooled liquids: (i) the large-scale density fluctuations known as ‘Fischer clusters’ and (ii) the phase separation of a one-component liquid into two phases.

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