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

Ranko Richert

Physica A: Statistical Mechanics and its Applications, 2003, vol. 322, issue C, 143-154

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.

Keywords: Glass transition; Dielectric hole burning; Heterogeneous dynamics (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:322:y:2003:i:c:p:143-154

DOI: 10.1016/S0378-4371(02)01912-X

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