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1 2020

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Structural and magnetic properties of gadolinium modified BiFeO3

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Ramirez Guzmán L. M. , Cruz Pacheco A. F. , Gómez Cuaspud J. A. , Parra Vargas C. A.

Materials Science Poland

2020

tom Vol. 38, No. 4

559--565

This paper reports the synthesis and characterization of the Bi0.94Gd0.06FeO3 sample obtained by solid state reaction method. The structural and morphological analysis was performed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Rietveld refinement analysis, confirming the obtaining of a rhombohedral crystalline phase and R3c space group (a = b = 5.577 Å and c = 13.847 Å), with an interconnected structure. Studies by X-ray photoelectron spectroscopy (XPS) revealed trivalent oxidation states of Bi, Fe and Gd ions. The synthesized sample exhibited a non-linear M–H loop indicating a weak ferromagnetic behavior with a remnant magnetization of 6.34 emu∙mol−1 and a coercive field of 295 Oe. The obtained structural and magnetic characteristics make these materials of great interest as multiferroic components.