Fitting the structural relaxation time of glass-forming liquids: single- or multi-branch approach?

TL;DR

This paper introduces a two-branch method for fitting the structural relaxation time of glass-forming liquids, aiming to highlight the potential advantages of multi-branch approaches over traditional single-formula methods.

Contribution

The paper presents a novel two-branch fitting method and encourages further exploration of multi-branch approaches in analyzing glass-forming liquids.

Findings

Two-branch method offers an alternative fitting strategy.

Analysis suggests multi-branch approaches may capture complex behaviors.

Highlights the need for further research into multi-branch models.

Abstract

Generally there are two strategies in fitting the measured structural relaxation time of glass-forming liquids: the single-formula approach e.g. the Vogel-Tammann-Fulcher equation,and the multi-branch approach. In this note, a two-branch method was presented. By analyzing existing single- and multi-branch approaches, I am trying to recall the attention of researchers in this field to the possibilities of the multi-branch approach.