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Magnetic and electrical properties of bulk BaTiO3+MgFe2O4 composite |
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| Authors: | Ravindar Tadi Yong-Il KimDebasish Sarkar CheolGi KimKwon-Sang Ryu |
| Institution: | a Department of Materials Science and Engineering, Chungnam National University, Daejeon 305-764, South Korea b Korea Research Institute of Standards and Science, P.O. Box 102, Daejeon 305-340, South Korea c National Institute of Technology, Rourkela 769-008, India |
| Abstract: | BaTiO3+MgFe2O4 material system was synthesized by hybrid chemical process using chlorides and nitrates of barium, titanium, iron, and magnesium. Magnetic properties of the composite samples measured as a function of annealing conditions indicated soft magnetic behavior. Saturation specific magnetization from 8 21 emu/g was observed for samples annealed at temperature between 950 and 1150 °C. Variation of specific saturation magnetization with respect to annealing temperature was related with the distribution of Fe cations in the tetrahedral and octahedral sites of MgFe2O4. Electrical properties of the samples annealed at different temperatures were measured to analyze the coexistence of ferroelectric phase. Dielectric constant varying from 15 to 200 with respect to frequency was observed for samples annealed from 950 to 1150 °C. |
| Keywords: | Electrical property Magnetic property Multiferroic coupling Hybrid chemical process BaTiO3+MgFe2O4 composite |
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