A program for the fitting of up to three Havriliak-Negami dispersions to dielectric data

A new version of the DielParamFit program [J. Colloid Interface Sci. 419 (2014) 102-106] for the fitting of a superposition of dispersion terms to measured dielectric data is presented. It extends its applicability to a wide range of new systems by allowing the use of up to three Havriliak-Negami dispersions, each of which can be readily transformed into Debye, Cole-Cole, or Cole-Davidson terms. Moreover, it greatly enhances its usability by means of a graphic interface that displays the measured data together with the model spectra allowing to iteratively adjust the chosen terms and guess parameter values guided by a live view of the obtained results. The DielParamFit_2 program executable file for Microsoft Windows is available upon request from the author. (c) 2021 Elsevier Inc. All rights reserved.

Automated summary

The new version of the DielParamFit program enhances its applicability to a wide range of systems by allowing up to three Havriliak-Negami dispersions and providing a graphic interface for manually adjusting parameter values.