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

IF 1.6 4区物理与天体物理 Q3 PHYSICS, APPLIED

Journal of Superconductivity and Novel Magnetism Pub Date : 2024-12-17 DOI:10.1007/s10948-024-06861-z

Seyed Ebrahim Mousavi Ghahfarokhi, Fatemeh Hamalzadeh Ahmadi, Omid Khani

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Abstract

FeNi3@MnO₂/FeNi₃ (FMF) nanocomposite with different weight ratios of FeNi₃ to FeNi₃@MnO₂ 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 FeNi₃ nanoparticles. However, the excessive growth of FeNi₃ 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.

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来源期刊

Journal of Superconductivity and Novel Magnetism 物理-物理：凝聚态物理

CiteScore

3.70

自引率

11.10%

发文量

342

审稿时长

3.5 months

期刊介绍： The Journal of Superconductivity and Novel Magnetism serves as the international forum for the most current research and ideas in these fields. This highly acclaimed journal publishes peer-reviewed original papers, conference proceedings and invited review articles that examine all aspects of the science and technology of superconductivity, including new materials, new mechanisms, basic and technological properties, new phenomena, and small- and large-scale applications. Novel magnetism, which is expanding rapidly, is also featured in the journal. The journal focuses on such areas as spintronics, magnetic semiconductors, properties of magnetic multilayers, magnetoresistive materials and structures, magnetic oxides, etc. Novel superconducting and magnetic materials are complex compounds, and the journal publishes articles related to all aspects their study, such as sample preparation, spectroscopy and transport properties as well as various applications.