Synthesis, microstructure and dielectric properties of Sb-doped multiferroic Bi0.8Ba0.2Fe1−xSbxO3 ceramics
The multiferroic ceramics Bi0.8Ba0.2Fe1−xSbxO3 with x=0, 0.01, and 0.02 were synthesized using the solid-phase reaction technique. The samples were sintered at two different temperatures, 850∘C and 900∘C. Scanning electron microscopy revealed the effect of antimony concentration on grain size and fo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
World Scientific Publishing
2019-08-01
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| Series: | Journal of Advanced Dielectrics |
| Subjects: | |
| Online Access: | http://www.worldscientific.com/doi/pdf/10.1142/S2010135X19500309 |
| Summary: | The multiferroic ceramics Bi0.8Ba0.2Fe1−xSbxO3 with x=0, 0.01, and 0.02 were synthesized using the solid-phase reaction technique. The samples were sintered at two different temperatures, 850∘C and 900∘C. Scanning electron microscopy revealed the effect of antimony concentration on grain size and formation. The effect of Sb-doping on the crystal structure and ferroelectric properties of these ceramics was investigated using X-ray diffraction, Raman spectroscopy, and dielectric measurements. The dielectric constant was enhanced upon Fe3+ substitution by Sb3+ without affecting the dielectric loss of the ceramics. The tetragonal distortion of the rhombohedral symmetry of BiFeO3 caused by Ba-doping at Bi3+ site was lifted by Sb-doping at Fe3+ site. |
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| ISSN: | 2010-135X 2010-1368 |