Magnetic and Radio-Absorbing Properties of Polycrystalline Li0.33Fe2.29Zn0.21Mn0.17O4 Spinel Ferrite

• Published in: Technical physics Vol. 66; no. 11; pp. 1216 - 1220
• Main Authors: Isaev, I. M., Kostishin, V. G., Korovushkin, V. V., Salogub, D. V., Shakirzyanov, R. I., Timofeev, A. V., Mironovich, A. Yu
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.11.2021; Springer Nature B.V
• Subjects: Classical and Continuum Physics; Complex permittivity; Electromagnetic radiation; Ferrites; Frequency ranges; Hysteresis loops; Magnetic permeability; Magnetic properties; Metal plates; Permeability; Physics; Physics and Astronomy; Polycrystals; Sintering; Spinel; Synthesis
• ISSN: 1063-7842; 1090-6525
• DOI: 10.1134/S1063784221090085

Polycrystalline spinel ferrites with a composition of Li 0.33 Fe 2.29 Zn 0.21 Mn 0.17 O 4 have been synthesized using the ceramic technology at sintering temperatures of 950, 1000, 1050, and 1100°C. The magnetic hysteresis loops and permeability of the objects of study are analyzed in magnetic fields from –400 to +400 A/m. The behaviors of the complex permittivity and complex permeability and the reflectance on a metal plate are investigated in the frequency range of 0.01–7.0 GHz. It is established that the optimal range of sintering temperatures for the synthesized ferrites is from 1050 to 1100°C. It is shown that the Li 0.33 Fe 2.29 Zn 0.21 Mn 0.17 O 4 spinel ferrite intensely absorbs electromagnetic radiation in the frequency range of 0.05–7.0 GHz. Possibilities of practical application of the results obtained are discussed.