Study of Enhanced Magnetodielectricity in Gd3+ Substituted Bi2Fe4O9

Mohapatra, S. R. and Tripathy, Satya N. and Singh, A. K. and Kaushik, S. D. (2022) Study of Enhanced Magnetodielectricity in Gd3+ Substituted Bi2Fe4O9. In: New Trends in Physical Science Research Vol. 2. B P International, pp. 71-78. ISBN 978-93-5547-639-5

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Abstract

We report the investigation of structural, magnetic, dielectric and magnetodielectric properties of orthorhombic Bi2(1-x)Gd2xFe4O9 (x = 0, 0.015) ceramics synthesized by the solid state reaction route. Room temperature Rietveld refinement of X-ray diffraction pattern of the ceramics shows structural distortion due to lower ionic radii Gd3+ (1.05 Å) substitution at Bi3+ (1.17 Å) site. Magnetic measurements confirmed an enhanced antiferromagnetic transition temperature (TN) in x = 0.015 (254 K) as compared to the BFO (250 K) along with an increase in magnetization due to the coupling between Gd3+ and Fe3+ ions. A concomitant anomaly in dielectric and tan loss plot around magnetic transition temperature indicated plausible magnetoelectric coupling (MEC) in both the samples and the MEC coefficient (Y) is approximated by ~ YM2. Enhanced magnetodielectric response (~100 %) has been observed for x = 0.015.

Item Type: Book Section
Subjects: Article Paper Librarian > Physics and Astronomy
Depositing User: Unnamed user with email support@article.paperlibrarian.com
Date Deposited: 25 Oct 2023 05:12
Last Modified: 25 Oct 2023 05:12
URI: http://editor.journal7sub.com/id/eprint/1832

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