Zasetsky, A. Y. and Buchner, R. (2011) Quasi-linear least squares and computer code for numerical evaluation of relaxation time distribution from broadband dielectric spectra. JOURNAL OF PHYSICS-CONDENSED MATTER, 23 (2): 025903. ISSN 0953-8984,
Full text not available from this repository.Abstract
We present a new fitting procedure and computer code for numerical evaluation of dielectric relaxation time distribution functions. The technique is based on linear least squares minimization and aims primarily at the analysis of compound experimental spectra of complex dielectric permittivity. It is fast, robust, and easy to use. No prior knowledge about the number of relaxation modes, their characteristic times, relaxation strengths, or the functional form of the underlying relaxation time distribution function is required, the procedure determines these parameters instead. The method is tested by both synthetic spectra with well-defined parameters of dielectric relaxation and experimental wide-band dielectric spectra of different types. We believe that this new fitting instrument, which allows an unbiased approach to the formal description of dielectric spectra, may be of interest in many areas of dielectric spectroscopy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ELECTROLYTE-SOLUTIONS; COMPLEX PERMITTIVITY; ION ASSOCIATION; SPECTROSCOPY; HYDRATION; MIXTURES; SYSTEM; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > PD Dr. Richard Buchner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 29 Jun 2020 06:39 |
| Last Modified: | 29 Jun 2020 06:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/21391 |
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