Abstract
A 0.9BiFeO3–0.1Ba0.8Sr0.2TiO3 ceramic is synthesized by conventional solid-state reaction method and investigated by structural, dielectric, thermal, Raman spectra and magnetization properties. The 0.9BiFeO3–0.1Ba0.8Sr0.2TiO3 is crystallized in rhombohedral distorted perovskite structure with space group R3c. The dielectric loss is investigated over wide range of temperature at 100kHz. During its evolution, an anomaly is observed at ∼300°C which corresponds to TN (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 0.05T. That revealed an antiferromagnetic transition of 0.9BiFeO3–0.1Ba0.8Sr0.2TiO3 ceramic. The latter confirms which was previously mentioned. Furthermore, these results reveal considerable spectral changes in the vicinity of the Neel temperature TN. Finally, this shift is discussed through structural, dielectric, thermal, vibrational and magnetic combination near the TN phase.
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