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A Study of the Electromagnetic Absorption Properties of FeNi3@MnO2/FeNi3.

Authors :
Ghahfarokhi, Seyed Ebrahim Mousavi
Ahmadi, Fatemeh Hamalzadeh
Khani, Omid
Source :
Journal of Superconductivity & Novel Magnetism; Feb2025, Vol. 38 Issue 1, p1-7, 7p
Publication Year :
2025

Abstract

FeNi3@MnO<subscript>2</subscript>/FeNi<subscript>3</subscript> (FMF) nanocomposite with different weight ratios of FeNi<subscript>3</subscript> to FeNi<subscript>3</subscript>@MnO<subscript>2</subscript> was prepared under 100 ℃ for 3 h. Then, these compounds’ structural and microstructural properties were characterized using X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. Also, the electromagnetic properties of the samples were characterized using a vibrating sample magnetometer, and microwave absorption in the 2–18 GHz frequency range. The results show that the magnetic characteristics of the samples increased with the increase in the ratio of FeNi<subscript>3</subscript> nanoparticles. However, the excessive growth of FeNi<subscript>3</subscript> nanoparticles decreased the dielectric properties (the dielectric constant) so that the electrical conductivity of the FMF (4) sample is lower than the FMF (3) sample. The reflection loss of the FMF (1) sample was better than the other samples and about − 27 db. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
15571939
Volume :
38
Issue :
1
Database :
Complementary Index
Journal :
Journal of Superconductivity & Novel Magnetism
Publication Type :
Academic Journal
Accession number :
181900150
Full Text :
https://doi.org/10.1007/s10948-024-06861-z