Nonlinear features in the dielectric behavior of propylene glycol

Susan Weinstein, Ranko Richert

Research output: Contribution to journalArticle

61 Citations (Scopus)

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 languageEnglish (US)
Article number064302
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number6
DOIs
StatePublished - Feb 5 2007

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Propylene Glycol
Glycols
propylene
Propylene
glycols
Electric fields
Liquids
Dielectric losses
Permittivity
Glass
electric fields
Electric potential
liquids
dielectric loss
high voltages
degrees of freedom
Experiments
impedance
permittivity
glass

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 journalArticle

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