Article ID Journal Published Year Pages File Type
1484855 Journal of Non-Crystalline Solids 2007 5 Pages PDF
Abstract

The dielectric response of glycerol/water (G/W) mixtures in a wide frequency and temperature ranges is considered in terms of spatial dynamic heterogeneities. The minimal cooperative relaxation time τ0 extracted from the dielectric ‘excess wing’ is associated with the main structural mesoscopic size Lm obtained by X-ray diffraction thereby providing clarification of the minimal unit structure responsible for the cooperative dynamics. The space and time scaling can be interpreted in terms of anomalous diffusion in the spanned percolation H-bonded networks.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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