On the harmonic analysis of non-linear dielectric effects

W. Huang, Ranko Richert

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


We investigate the nonlinear dielectric effects in a polar viscous liquid, propylene carbonate, by analyzing the voltage and current traces obtained for a sinusoidal electric field at a frequency of 1 kHz and field amplitudes as high as 162 kV/cm. The main source of non-linear behavior results from the energy absorbed from the field and is understood quantitatively. However, there is a qualitative difference in the behavior of the field induced change, Δε (E), and the third harmonic amplitude of the current, I . Although both Δε (E) and I are considered reliable measures of non-linear behavior, we show here that the third harmonic signal reflects only those non-linear responses that are instantaneous on the time scale of the test frequency.

Original languageEnglish (US)
Pages (from-to)217-221
Number of pages5
JournalEuropean Physical Journal B
Issue number2
StatePublished - Nov 2008

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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