Abstract
We investigate the nonlinear dielectric effects in a glass-forming polar liquid, propylene glycol, by high-voltage frequency-domain impedance experiments. The peak amplitudes of the sinusoidal electric fields are varied between 14 and 283 kV/cm. Two competing nonlinear effects are observed: a decrease of the dielectric constant reminiscent of the Langevin effect and an increase of the dielectric loss that originates from the irreversible transfer of energy from the electric field to the slow degrees of freedom of the viscous liquid. By virtue of the frequency dependence of the two features, the positive and negative changes are easily separable. Both effects can be rationalized quantitatively without adjustable parameters.
| Original language | English (US) |
|---|---|
| Article number | 064302 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 75 |
| Issue number | 6 |
| DOIs | |
| State | Published - Feb 5 2007 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Nonlinear features in the dielectric behavior of propylene glycol. / Weinstein, Susan; Richert, Ranko.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 75, No. 6, 064302, 05.02.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Nonlinear features in the dielectric behavior of propylene glycol
AU - Weinstein, Susan
AU - Richert, Ranko
PY - 2007/2/5
Y1 - 2007/2/5
N2 - We investigate the nonlinear dielectric effects in a glass-forming polar liquid, propylene glycol, by high-voltage frequency-domain impedance experiments. The peak amplitudes of the sinusoidal electric fields are varied between 14 and 283 kV/cm. Two competing nonlinear effects are observed: a decrease of the dielectric constant reminiscent of the Langevin effect and an increase of the dielectric loss that originates from the irreversible transfer of energy from the electric field to the slow degrees of freedom of the viscous liquid. By virtue of the frequency dependence of the two features, the positive and negative changes are easily separable. Both effects can be rationalized quantitatively without adjustable parameters.
AB - We investigate the nonlinear dielectric effects in a glass-forming polar liquid, propylene glycol, by high-voltage frequency-domain impedance experiments. The peak amplitudes of the sinusoidal electric fields are varied between 14 and 283 kV/cm. Two competing nonlinear effects are observed: a decrease of the dielectric constant reminiscent of the Langevin effect and an increase of the dielectric loss that originates from the irreversible transfer of energy from the electric field to the slow degrees of freedom of the viscous liquid. By virtue of the frequency dependence of the two features, the positive and negative changes are easily separable. Both effects can be rationalized quantitatively without adjustable parameters.
UR - http://www.scopus.com/inward/record.url?scp=33846781157&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33846781157&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.75.064302
DO - 10.1103/PhysRevB.75.064302
M3 - Article
AN - SCOPUS:33846781157
VL - 75
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 6
M1 - 064302
ER -