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A 0.9BiFeO 3 –0.1Ba 0.8 Sr 0.2 TiO 3 ceramic is synthesized by conventional solid-state reaction method and investigated by structural, dielectric, thermal, Raman spectra and magnetization properties. The 0.9BiFeO 3 –0.1Ba 0.8 Sr 0.2 TiO 3 is crystallized in rhombohedral distorted perovskite structure with space group R 3 c . The dielectric loss is investigated over wide range of temperature at 100 kHz. During its evolution, an anomaly is observed at ∼300 °C which corresponds to T N (antiferromagnetic transition temperature). Besides, it is confirmed by DSC measurement. A magnetic property is confirmed by the temperature dependence of magnetization ( M – T ) under an applied magnetic field of 0.05 T. That revealed an antiferromagnetic transition of 0.9BiFeO 3 –0.1Ba 0.8 Sr 0.2 TiO 3 ceramic. The latter confirms which was previously mentioned. Furthermore, these results reveal considerable spectral changes in the vicinity of the Neel temperature T N . Finally, this shift is discussed through structural, dielectric, thermal, vibrational and magnetic combination near the T N phase. |
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