Dielectric spectroscopy on aging glasses

Details Dielectric spectroscopy on aging glasses Dielectric spectroscopy on aging glasses

2005-11-04

arxiv.org/abs/cond-mat/0511104v1

J. Non-Cryst. Solids 352, 4941 (2006)

Physics

Condensed Matter

Disordered Systems and Neural Networks

6 pages, 5 figures, submitted to proceedings of 5th IDMRCS, Lille, 2005

Scientific paper

10.1016/j.jnoncrysol.2006.02.136

In the present work, we provide further evidence for the applicability of a modified stretched-exponential behavior, proposed recently for the description of aging-time dependent data below the glass temperature [P. Lunkenheimer et al., Phys. Rev. Lett. 95 (2005) 055702]. We analyze time-dependent dielectric loss data in a variety of aging glasses, including new data on Salol and propylene carbonate, using a conventional stretched exponential and the newly proposed approach. Also the scaling of aging data obtained at different measuring frequencies, which was predicted on the basis of the new approach, is checked for its validity.

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