Understanding the phenomenon of viscous slowing down of glass-forming liquids from the static pair correlation function

Ankit Singh; Yashwant Singh

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arXiv · 1909.02734

Understanding the phenomenon of viscous slowing down of glass-forming liquids from the static pair correlation function

Ankit Singh·Yashwant Singh

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Abstract

A theory which uses data of the static pair-correlation function is developed to calculate quantities associated with the viscous slowing down of supercooled liquids. We calculate value of the energy fluctuations that determine the number of stable bonds a particle forms with neighbors from data of the structural relaxation time. The number of bonds and the activation energy for relaxation are shown to increase sharply in a narrow temperature range close to the glass temperature. The configurational entropy calculated from values of the configurational fluctuations is found in good agreement with the value determined from simulations.

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Ankit Singh, Yashwant Singh. 2019-09-06. Understanding the phenomenon of viscous slowing down of glass-forming liquids from the static pair correlation function. https://arxiv.org/abs/1909.02734

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