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Erschienen in:
2003 | OriginalPaper | Buchkapitel
Dielectric Properties of Inhomogeneous Media
verfasst von : P. A. M. Steeman, J. van Turnhout
Erschienen in: Broadband Dielectric Spectroscopy
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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Inhomogeneous media present an interesting class of materials for dielectric research. Differences in conductivity of the phases of an inhomogeneous medium give rise to interfacial polarization, the build-up of space charges near the interfaces between the various phases. Such a polarization usually occurs at frequencies lower than the time scales typical of dipolar polarizations. Moreover, the contribution of interfacial polarization to the dielectric properties of a material is often much larger than the dipolar contributions.