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Study of the Structural and Electrical Properties of Cr-Doped BiFeO<sub>3</sub> Ceramic
Department of Physics, College of Science, King Faisal University, Hofuf, KSA
Departement of Physics, Cairo University, Giza, Egypt
Department of Physics, College of Science, Fayoum University, Al Fayoum, Egypt
- 1 Department of Physics, College of Science, King Faisal University, Hofuf, KSA
- 2 Departement of Physics, Cairo University, Giza, Egypt
- 3 Department of Physics, College of Science, Fayoum University, Al Fayoum, Egypt
Materials Sciences and Applications·Volume 08 (2017)·Pages 716–725·Published 5 September 2017·DOI10.4236/msa.2017.810051
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Abstract
Multiferroic BiFe 1-x Cr x O 3 (x = 0.2 and 0.4) ceramics were synthesized in a single phase. The effects of Cr 3+ substitution on the crystal structure, dielectric permittivity and leakage current were investigated. Preliminary X-ray structural studies revealed that the samples had a rhombohedral perovskite crystal structure. The dielectric constant ε ' significantly increased while the dielectric loss tan δ was substantially decreased with the increase in Cr 3+ substitution. The temperature effect on the dielectric properties exhibited an anomaly corresponding to magneto-electric coupling in the samples and was shifted to lower temperatures with the increase in Cr 3+ substitution. The leakage current density also reduced in magnitude with the increase in the Cr 3+ substitution.
KeywordsX-Ray Diffraction (XRD)Dielectric PropertiesLeakage Current Density
- Markiewicz, E., Hilczer, B., Blaszyk, M., Pietraszko, A. and Talik, E. (2011) Dielectric Properties of BiFeO3 Ceramics Obtained from Mechanochemically Synthesized Nanopowders. Journal of Electroceramics, 27, 154-161. https://doi.org/10.1007/s10832-011-9660-9
- Pattannayak, S., Choudhary, R.N.P. and Das, P.R. (2014) Effect of Sm-Substitution on Structural, Electrical and Magnetic Properties of BiFeO3. Electronic Materials Letters, 10, 165-172. https://doi.org/10.1007/s13391-013-3050-1
- Das, R., Khan, G.G. and Mandal, K. (2012) Magnetoelectric, and Magnetic Properties in Pr and Cr co-Doped BiFeO3 Nanotubes Fabricated by Template Assisted Route. Journal of Applied Physics, 111, Article ID: 104115. https://doi.org/10.1063/1.4721810
- Cheng, Z.X., Wang, X.L., Kimura, H., Ozawa, K. and Dou, S.X.L. (2008) La and Nab co Doped BiFeO3 Multiferroic Thin Films on LaNiO3/Si and IrO2/Si Substrates. Applied Physics Letters, 92, Article ID: 0929025. https://doi.org/10.1063/1.2890068
- Kimura, T., Lawesand, G. and Ramirez, A.P. (2005) Electric Polarization Rotation in a Hexaferrite with Long-Wavelength Magnetic Structures. Physical Review Letters, 94, Article ID: 137201. https://doi.org/10.1103/PhysRevLett.94.137201
- Kim, J.W., et al. (2012) Electrical Properties of BiFeO3 and (Bi0.9Eu0.1)(Fe0.9Mn0.1)O3-δ Thin Films. Journal of the Korean Physical Society, 60, 193-197. https://doi.org/10.3938/jkps.60.193
- Marthin, L.W., Chu, Y.H. and Ramesh, R. (2010) Advances in the Growth and Characterization of Magnetic, Ferroelectric, and Multiferroic Oxide Thin Films. Materials Science and Engineering: R: Reports, 68, 89-133. https://doi.org/10.1016/j.mser.2010.03.001
- Zhang, Q., et al. (2013) Effect of La3+ Substitution on the Phase Transitions, Microstructure and Electrical Properties of Bi1-xLaxFeO3 Ceramics. Journal of Alloys and Compounds, 546, 57-62. https://doi.org/10.1016/j.jallcom.2012.08.067
- Kim, J.K., Kim, S.S. and Kim, W.J. (2005) Sol-Gel Synthesis and Properties of Multiferroic BiFeO3. Materials Letters, 59, 4006. https://doi.org/10.1016/j.matlet.2005.07.050
- Zhang, Y., Cheng, S. and Yu, J. (2010) The Study of BiCrxFe1-xO3 Thin Films Synthesized by Sol-Gel Technique. Journal of the European Ceramic Society, 30, 271-275. https://doi.org/10.1016/j.jeurceramsoc.2009.05.005
- Yadav, K. L. (2011) Magnetic, Magnetocapacitance and Dielecric Properties of Cr Doped Bismuth Ferrite Nanoceramics. Materials Science and Engineering B, 176, 227-230.