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Trials of a Novel Approach for the Analysis of Impedance Spectroscopy

Author: S. Hershkovitz, S. Baltianski, Y. D. Horev, D. R. Lewin, Y. Tsur, Israel Institute of Technology    |   Document Download   |   Product code: ZCP2009MST0831

File size: 2 MB

Classified as: Computational Materials Engineering Materials Characterization

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Our approach for analyzing impedance spectroscopy results is based on seeking a distribution function of relaxation times (DFT). The a-priori knowledge that we use is to assume the Debye kernel for dielectric systems, and to assume that the DFT is a combination of known mathematical peaks. Our new analysis method is based on an evolutionary programming technique, Genetic Programming (GP), which is inspired by biological evolution. GP is used in order to identify the best DFT describing the behavior of real systems. To create the best model, selection of mathematical peaks such as Gaussian, Lorentzian etc. is used. Analysis of barium titanate is demonstrated and discussed.
  • From: Materials Science & Technology 2009 Conference and Exhibition (MS&T Partner Societies)
  • Published: October 01, 2009
  • Pages: 7