Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 701, Issue -, Pages 43-48Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2017.01.120
Keywords
X-ray diffraction; Dielectric response; Raman spectroscopy; Magnetic properties
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We prepared BiFe0.95(Ni0.5Ti0.5)(0.05)O-3 by the conventional solid-state reaction method. X-ray diffraction along with the Rietveld-refinement revealed the existence of a rhombohedral R3c symmetry in BiFe0.95(Ni0.5Ti0.5)(0.05)O-3 . The dielectric permittivity was investigated over a wide range of temperatures at 1 kHz. During its evolution, an anomaly was observed at 520 K, which corresponds to T-N (antiferromagnetic transition temperature). The prepared ceramic exhibited a considerable improvement in dielectric properties compared to pure BiFeO3. From the magnetization dependence at room temperature, BiFe0.95(Ni0.5Ti0.5)(0.05)O-3 enhanced magnetization (M-r approximate to 0.026 emu/g) and reduced the coercive field (H(c)(similar to)110 Oe) compared to BiFeO3. BiFe0.95(Ni0.5Ti0.5)(0.05)O-3 ceramic is ferromagnetic with a cluster-glass state unlike the antiferromagnetic BiFeO3-based compounds. The Raman study confirmed the X ray diffraction analysis, the dielectric measurement and magnetic one. (C) 2017 Elsevier B.V. All rights reserved.
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