Dielectric hole burning in an electrical circuit analog of a dynamically heterogeneous system

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Abstract

The dielectric properties of a dynamically heterogeneous material are represented by an R-C network in order to study the effects of spectrally selective Joule heating for the situation encountered in (non-resonant) dielectric hole burning (DHB). The energy irreversibly transferred to the system is calculated for a finite number of high electric field sine waves, corresponding to the 'burn' cycle preceeding the polarization measurement in a DHB experiment. As a result of the residual polarization, heating continues after the externally applied voltage is set to zero. Modelling temperature-dependent relaxation times by a common negative temperature coefficient for the resistive elements is the only non-linearity of the electrical circuit analog required to reproduce most of the major features observed in DHB experiments.

Original languageEnglish (US)
Pages (from-to)143-154
Number of pages12
JournalPhysica A: Statistical Mechanics and its Applications
Volume322
DOIs
StatePublished - May 1 2003

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Keywords

  • Dielectric hole burning
  • Glass transition
  • Heterogeneous dynamics

ASJC Scopus subject areas

  • Statistics and Probability
  • Condensed Matter Physics

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