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Home > Issues > RetrieveInfluence of Vanadium Substitution on Phase Structure, Magnetic and Dielectric Properties of BiFeO3 Ceramics
Journal of Magnetics, Volume 23, Number 1, 31 Mar 2018, Pages 5-10
Qiang Li (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Shengxiang Bao * 
(State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Tao Hong (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Libo Ai (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Yingli Liu (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Yulan Jing (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Jie Li (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
(State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Tao Hong (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Libo Ai (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Yingli Liu (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Yulan Jing (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China), Jie Li (State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China)
Abstract
BiFe1-xVxO3 (x = 0.00, 0.03, 0.05, 0.07, 0.09) ceramics were prepared by solid-sate reaction method. The effect of V5+ substitution on phase structure, morphology, magnetic and dielectric properties had been investigated. The Rietveld refinement of the X-Ray diffraction data from the BiFe1-xVxO3(BFVO) ceramics showed samples with rhombohedral structure (R3c) for x = 0.00-0.07. When x = 0.09, partial phase structural be translated to orthorhombic phase (Pnma). Morphology showed two kinds of crystal and proved the phase to be transition. Magnetic measurements exhibited weak ferromagnetic behavior of sample. BiFe0.93V0.07O3 ceramic exhibited the highest value of saturation magnetization. Due to V5+ substitution, maybe BFVO attributed weak ferromagnetism to structure distortion and phase transition. Dielectric constant kept a stable value in a wide range frequency of 1 MHz to 1 GHz. With V5+ ions increasing, dielectric constant increased significantly, while dielectric loss kept a low value. These results indicated that BFVO may be promising for application in magneto-electric devices.
Keywords: BiFeO3 ceramics; V5+ substitution; phase transition; magnetic, dielectric
DOI: https://doi.org/10.4283/JMAG.2018.23.1.005
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