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Title | Modeling the Permittivity of Ferrite-Dielectric Composites |
Authors |
Astakhov, V.A.
Shakirzyanov, R.I. Morchenko, A.T. Mingazheva, Z.V. Kurochka, S.P. |
ORCID | |
Keywords |
electromagnetic radiation effective medium approximation reflection coefficient effective permeability and permittivity shielding materials ferrite composite |
Type | Article |
Date of Issue | 2016 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/47520 |
Publisher | Sumy State University |
License | |
Citation | Modeling the Permittivity of Ferrite-Dielectric Composites [Текст] / V.A. Astakhov, R.I. Shakirzyanov, A.T. Morchenko [et al.] // Журнал нано- та електронної фізики. - 2016. - Т.8, №3. - 03044 |
Abstract |
The paper presents the model of ferrite-dielectric (ferroelectric) composites with semiconductive powder fillers. Such media have the potential for designing systems with controlled frequency dispersion. Experimentally observed significant increase of effective dielectric permittivity in Mn-Zn ferrite composites with the semiconductor pellet is explained on the basis of the capacitance effect. Composites based on NiZn
ferrite, which have significantly higher electrical resistance, do not exhibit such phenomena and their behavior is described in the framework of the traditional models of effective medium approximation. There is proposed an analytical solution for the dielectric constant of the composite, based on consideration of the impedances of equivalent circuit involving initial materials (matrix and filler). |
Appears in Collections: |
Журнал нано- та електронної фізики (Journal of nano- and electronic physics) |
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Astakhov _ electromagneti_ radiation.pdf | 271,54 kB | Adobe PDF | 1635148000 |
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