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Related Experiment Video

Updated: May 18, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

Glassy dynamics in a confined monatomic fluid.

S H Krishnan¹, K G Ayappa

¹Department of Chemical Engineering, Indian Institute of Science, Bangalore 560012, India.

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|September 26, 2012

Summary

Confinement transforms simple fluids into fragile glass formers. Molecular dynamics reveal two-step relaxation and power-law divergences in confined Lennard-Jones fluids, mimicking glass transition behavior.

Area of Science:

Soft matter physics
Materials science
Computational chemistry

Background:

Glassy dynamics are crucial in materials science.
Confinement effects significantly alter fluid behavior.
Understanding glass formers is key to designing new materials.

Purpose of the Study:

Investigate glass transition in confined fluids.
Analyze dynamics of single-component soft-sphere fluids.
Explore confinement-induced fragile glass former behavior.

Main Methods:

Employed molecular dynamic simulations.
Studied Lennard-Jones fluid in slit-shaped pores.
Analyzed self-intermediate scattering function (F(s)(k,t)) and mean-squared displacement.

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Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Published on: January 26, 2016

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Last Updated: May 18, 2026

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

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Published on: May 20, 2014

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

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Published on: December 4, 2017

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films

Published on: January 26, 2016

Main Results:

Observed two-step relaxation at moderate temperatures.
Demonstrated time-temperature superposition for mean-squared displacement.
Identified power-law divergences in self-diffusivity and relaxation times upon cooling.

Conclusions:

Confined fluids exhibit fragile glass former properties.
Dynamics follow mode coupling theory predictions for glass transition.
Vogel-Fulcher-Tammann equation describes self-diffusivity temperature dependence.