Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range

Placing non-magnetic microparticles in a magnetic colloid makes it possible to control them by means of a magnetic field, which allows the creation of tunable composite materials. The choice of microparticles with appropriate properties can enable the creation of materials with tunable absorption of...

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Главные авторы:	Turkin, S. D., Туркин, С. Д., Zakinyan, A. R., Закинян, А. Р., Semenova, S. A., Семенова, С. А., Kunikin, S. A., Куникин, С. А.
Formato:	Статья
Idioma:	English
Publicado em:	2024
Assuntos:	Absorption coefficient Super high frequency Magnetic colloids Electromagnetic waves Anisotropic microstructure Conductive microparticles
Acesso em linha:	https://dspace.ncfu.ru/handle/123456789/27110
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spelling	ir-123456789-271102024-04-02T11:57:52Z Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range Turkin, S. D. Туркин, С. Д. Zakinyan, A. R. Закинян, А. Р. Semenova, S. A. Семенова, С. А. Kunikin, S. A. Куникин, С. А. Absorption coefficient Super high frequency Magnetic colloids Electromagnetic waves Anisotropic microstructure Conductive microparticles Placing non-magnetic microparticles in a magnetic colloid makes it possible to control them by means of a magnetic field, which allows the creation of tunable composite materials. The choice of microparticles with appropriate properties can enable the creation of materials with tunable absorption of electromagnetic microwaves, which may be of interest in device engineering and radar detection. An experimental and theoretical study of the interaction of super high frequency electromagnetic waves with magnetic colloids containing microparticles of conductive filler (aluminum) under the additional influence of a constant magnetic field has been carried out in this work. The studies were performed using a cell based on a coaxial cable in the frequency range of 5–18 GHz. It was found that the formation of chain structures of aluminum particles in the magnetic field leads to a significant increase in the absorption coefficient of electromagnetic energy. The character of the frequency dependence and the absolute values of the absorption and reflection coefficients depend on the volume concentration of the conductive filler in a complex way. To interpret the obtained results, numerical modeling of the investigated system in the effective medium approximation by the finite element method has been carried out. The anisotropic distribution of electromagnetic energy losses in the transmission line is demonstrated. 2024-04-02T11:56:12Z 2024-04-02T11:56:12Z 2024 Статья Turkin, S., Zakinyan, A., Semyonova, S., Kunikin, S. Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range // Applied Physics A: Materials Science and Processing. - 2024. - 130 (4). - статья № 244. - DOI: 10.1007/s00339-024-07406-w https://dspace.ncfu.ru/handle/123456789/27110 en Applied Physics A: Materials Science and Processing application/pdf application/pdf
institution	СКФУ
collection	Репозиторий
language	English
topic	Absorption coefficient Super high frequency Magnetic colloids Electromagnetic waves Anisotropic microstructure Conductive microparticles
spellingShingle	Absorption coefficient Super high frequency Magnetic colloids Electromagnetic waves Anisotropic microstructure Conductive microparticles Turkin, S. D. Туркин, С. Д. Zakinyan, A. R. Закинян, А. Р. Semenova, S. A. Семенова, С. А. Kunikin, S. A. Куникин, С. А. Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
description	Placing non-magnetic microparticles in a magnetic colloid makes it possible to control them by means of a magnetic field, which allows the creation of tunable composite materials. The choice of microparticles with appropriate properties can enable the creation of materials with tunable absorption of electromagnetic microwaves, which may be of interest in device engineering and radar detection. An experimental and theoretical study of the interaction of super high frequency electromagnetic waves with magnetic colloids containing microparticles of conductive filler (aluminum) under the additional influence of a constant magnetic field has been carried out in this work. The studies were performed using a cell based on a coaxial cable in the frequency range of 5–18 GHz. It was found that the formation of chain structures of aluminum particles in the magnetic field leads to a significant increase in the absorption coefficient of electromagnetic energy. The character of the frequency dependence and the absolute values of the absorption and reflection coefficients depend on the volume concentration of the conductive filler in a complex way. To interpret the obtained results, numerical modeling of the investigated system in the effective medium approximation by the finite element method has been carried out. The anisotropic distribution of electromagnetic energy losses in the transmission line is demonstrated.
format	Статья
author	Turkin, S. D. Туркин, С. Д. Zakinyan, A. R. Закинян, А. Р. Semenova, S. A. Семенова, С. А. Kunikin, S. A. Куникин, С. А.
author_facet	Turkin, S. D. Туркин, С. Д. Zakinyan, A. R. Закинян, А. Р. Semenova, S. A. Семенова, С. А. Kunikin, S. A. Куникин, С. А.
author_sort	Turkin, S. D.
title	Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
title_short	Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
title_full	Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
title_fullStr	Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
title_full_unstemmed	Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
title_sort	electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range
publishDate	2024
url	https://dspace.ncfu.ru/handle/123456789/27110
work_keys_str_mv	AT turkinsd electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT turkinsd electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT zakinyanar electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT zakinânar electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT semenovasa electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT semenovasa electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT kunikinsa electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange AT kunikinsa electromagneticwaveabsorptionbymagneticcolloidswithconductivefillerinthecentimeterrange
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Electromagnetic wave absorption by magnetic colloids with conductive filler in the centimeter range

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