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Published in: Journal of Sol-Gel Science and Technology 1/2024

01-12-2023 | Original Paper

Effect of Gd3+ substitution on structural, morphological, and magnetic properties of BiFeO3 nanoparticles

Authors: Manoj Kumar, Sunil Chauhan, Himanshu Pandey

Published in: Journal of Sol-Gel Science and Technology | Issue 1/2024

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Abstract

In this work, we report on the synthesis of Gd3+ substituted BiFeO3 nanoparticles and their structural, chemical, and magnetic characterizations. Single rhombohedral phase is obtained till x = 0.06 in Bi1-xGdxFeO3 nanoparticles, as confirmed by the Rietveld refinement of powder X-ray diffraction profiles. Beyond x = 0.06, a mixed phase consisting of both rhombohedral and orthorhombic structures is established. This kind of atom substitution-driven structural change is also confirmed by Raman spectroscopy. Core-level X-ray photoemission spectroscopy reveals the dominance of the Fe3+ oxidation state and also provides an estimation of oxygen vacancies which are found to be ~ 28% and 17% for x = 0.06 and 0.15 samples, respectively. The width of the hysteresis loop increases with the increase in Gd3+ concentration, suggesting an enhancement in magnetic character in contrast with pure BiFeO3 nanoparticles, and ferromagnetic contribution to the magnetization is estimated to a maximum value of 0.50 emu/g for x = 0.12.

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Metadata
Title
Effect of Gd3+ substitution on structural, morphological, and magnetic properties of BiFeO3 nanoparticles
Authors
Manoj Kumar
Sunil Chauhan
Himanshu Pandey
Publication date
01-12-2023
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 1/2024
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-023-06269-6

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