Ideal glass transitions in thin films: An energy landscape perspective

TL;DR

This paper presents a mean-field energy landscape model for thin fluid films that predicts how confinement and interactions influence the ideal glass transition, aligning qualitatively with experimental observations.

Contribution

It introduces a novel mean-field energy landscape model specifically for thin films, linking microscopic interactions to macroscopic glass transition behavior.

Findings

Number of accessible energy basins varies with film thickness and interactions.

Predicted glass transition temperatures qualitatively match experimental trends.

Model provides insights into the role of confinement in glass formation.

Abstract

We introduce a mean-field model for the potential energy landscape of a thin fluid film confined between parallel substrates. The model predicts how the number of accessible basins on the energy landscape and, consequently, the film's ideal glass transition temperature depend on bulk pressure, film thickness, and the strength of the fluid-fluid and fluid-substrate interactions. The predictions are in qualitative agreement with the experimental trends for the kinetic glass transition temperature of thin films, suggesting the utility of landscape-based approaches for studying the behavior of confined fluids.