NOVEL-APPROACH TO THE ANALYSIS OF BROAD-BAND DIELECTRIC SPECTRA

Broadband dielectric spectra are usually fitted to a superposition of contributions from one or several parametrized processes (Debye, Havri liak-Negami, etc.). This work proposes instead to extract continuous d istributions of relaxation times from complex dielectric spectra by so lving a Fredholm integral equation using the Tikhonov regularization t echnique with a self-consistent choice of the regularization parameter . This method is stable with respect to the noise and resolves multipl e dynamical processes. An experimental example of salol adsorbed on mi croporous glass is analyzed.