Abstract
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 3ω. Although both Δε ″(E) and I 3ω 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 language | English (US) |
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Pages (from-to) | 217-221 |
Number of pages | 5 |
Journal | European Physical Journal B |
Volume | 66 |
Issue number | 2 |
DOIs | |
State | Published - Nov 2008 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics