%0 Journal Article
%T Dynamical heterogeneity of NaNO2 confined within porous glasses
%A V. Dvornikov
%A L. Korotkov
%A A. Naberezhnov
%A A. Fokin
%J Optica Applicata
%D 2008
%I 
%X Frequency dependences of imaginary part of the dielectric response ¦Å'(f) of SiO2¨CNaNO2 nanocomposite, prepared by embedding of sodium nitrite into porous glasses with 7 nm average pore diameter, have been studied within a temperature range of 360¨C520 K. It has been found that the spectrum S(¦Ø) = ¦Å'(f)/f contains the component ~1/f¦Á, where ¦Á is a coefficient indicating the dynamical heterogeneity of dipoles. Peculiarities of the temperature dependence of ¦Á are discussed.
%K nanostructured ferroelectrics. porous glasses
%K dielectric responce
%U http://www.if.pwr.wroc.pl/~optappl/pdf/2008/no1/optappl_3801p25.pdf