Temperature development of glassy alpha-relaxation dynamics determined by broadband dielectric spectroscopy

Details Temperature development of glassy alpha-relaxation dynamics determined by broadband dielectric spectroscopy Temperature development of glassy alpha-relaxation dynamics determined by broadband dielectric spectroscopy

2010-04-28

arxiv.org/abs/1004.5137v2

Phys. Rev. E 81, 051504 (2010)

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 5 figures, final version with minor revisions according to referee demands. The relaxation time data published in the

Scientific paper

10.1103/PhysRevE.81.051504

We present the temperature dependence of alpha-relaxation times of 13 glass formers determined from broadband dielectric spectroscopy, also including data from aging measurements. The data sets partly cover relaxation-time ranges of up to 16 decades enabling a critical test of the validity of model predictions. For this purpose, the data are provided for electronic download. Here we employ these results to test the applicability of the Vogel-Fulcher-Tammann equation and a recently proposed new approach that was demonstrated to provide superior fits of a vast collection of viscosity data.

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