On the permittivity of mixtures: a low-fluctuation approach

We present a general formalism for obtaining the permittivity of a mixture as a function only of measurable macroscopic parameters of its components. From this formalism, a new expression for the effective permittivity of mixtures is obtained, valid for small enough local fluctuations of the permitt...

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Bibliographic Details
Published inJournal of electrostatics Vol. 32; no. 2; pp. 113 - 122
Main Authors Peón-Fernández, J.F., Iglesias, T.P.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.04.1994
Elsevier
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Permittivity (dielectric function)
Physics
Suspended particle
Fluctuations
Mixtures
Theoretical study
Liquid phase
Polar compounds
Permittivity
Dilute systems
Organic compounds
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Summary:We present a general formalism for obtaining the permittivity of a mixture as a function only of measurable macroscopic parameters of its components. From this formalism, a new expression for the effective permittivity of mixtures is obtained, valid for small enough local fluctuations of the permittivity. Even when the formalism is applied to classical systems (mixtures of spherical particles or spherical particles in a continuous solvent), where this condition is not satisfied, it is found that well-known results are recovered, and the agreement with experiment is still quite good.
ISSN:0304-3886
1873-5738
DOI:10.1016/0304-3886(94)90002-7