NDLI: The energy criterion in the interpretation of the universal dielectric response

Content Provider	IEEE Xplore Digital Library
Author	Jonscher, A.
Copyright Year	1993
Description	Author affiliation: R. Holloway Coll., London Univ., UK (Jonscher, A.)
Abstract	The universal dielectric response follows a frequency dependence of the complex susceptibility given by a fractional power law in which the ratio of energy lost per radian to energy stored at the peak is independent of frequency. It is shown that this energy criterion can be satisfied in any solid state system in which the energy lost in every microscopic reversal of polarization is independent of the rate of reversals. Specific models are discussed, such as dipolar and charge carrier polarizations in solids, and it is shown that the exponent n is related to the density of the polarizing species and also to the dipole length, which in the case of hopping charge carriers means the hopping distance. The limiting forms of dielectric response corresponding to the flat low-loss behavior characteristic of good insulators, with n /spl rarr/ 1, are obtained with low density systems. In high-density systems the highly lossy Debye-like dipolar or low-frequency dispersion charge carrier response is found to be in good agreement with experimental observations.<>
Starting Page	92
Ending Page	97
File Size	292897
Page Count	6
File Format	PDF
ISBN	0780309669
DOI	10.1109/CEIDP.1993.378991
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1993-10-17
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Charge carriers Dielectric losses Polarization Frequency dependence Microscopy Solid state circuits Solid modeling Dielectrics and electrical insulation Fourier transforms Frequency domain analysis
Content Type	Text
Resource Type	Article

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