ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
This work addresses the relationship between grain properties, grain packing density, and the permeability and permittivity spectra of composite, polycrystalline material. The scattered multipolar fields about a single sphere are related to the polarizability of an ordered congregation of such spheres. Using the Clausius–Mossotti relation the effective permeability and permittivity spectra of a congregate polycrystalline material, formed by a cubic array of identical spheres, is determined for arbitrary packing density, permittivity, and permeability of the individual spheres. Although the spectra are considered over a range where the product of the external wave vector and sphere radius is kept small, typically less than one-tenth, the product of the internal wave vector and sphere radius is unrestricted. Changes in the packing density and internal wavelength have a dramatic effect on the calculated permeability and permittivity spectra.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.348801
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