Title : ( Effect of thermodynamic history on secondary relaxation in the glassy state )
Authors: Soheil SHarifi , Daniele Prevosto , Simone Capaccioli , M. Lucchesi , M.Paluch ,
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Abstract
We investigated by dielectric spectroscopy the effect that the thermodynamic history of a glass has on the secondary relaxation process. In particular we focused our attention to glassy states at the same conditions of temperature and pressure but reached with different combinations of variation of the external parameters. Our analysis shows that the effect of thermodynamic history on the relaxation frequency is related to the activation volume of the process: secondary processes with larger activation volume present a larger effect of the thermodynamic history. This demonstrates an important role of density in determining such behavior in glassy systems.
Keywords
Dielectric properties; Pressure effects; Thermodynamics; Secondary relaxation
@article{paperid:1058823,
author = {SHarifi, Soheil and Daniele Prevosto and Simone Capaccioli and M. Lucchesi and M.Paluch},
title = {Effect of thermodynamic history on secondary relaxation in the glassy state},
journal = {Journal of Non-Crystalline Solids},
year = {2007},
volume = {353},
number = {47},
month = {December},
issn = {0022-3093},
pages = {4313--4317},
numpages = {4},
keywords = {Dielectric properties; Pressure effects; Thermodynamics; Secondary relaxation},
}
%0 Journal Article
%T Effect of thermodynamic history on secondary relaxation in the glassy state
%A SHarifi, Soheil
%A Daniele Prevosto
%A Simone Capaccioli
%A M. Lucchesi
%A M.Paluch
%J Journal of Non-Crystalline Solids
%@ 0022-3093
%D 2007
