Raman spectroscopy and evidence of magnetic transition in 0.9BiFeO sub(3)-0.1Ba sub(0.8)Sr sub(0.2)TiO sub(3) ceramic

A 0.9BiFeO sub(3)-0.1Ba sub(0.8)Sr sub(0.2)TiO sub(3) ceramic is synthesized by conventional solid-state reaction method and investigated by structural, dielectric, thermal, Raman spectra and magnetization properties. The 0.9BiFeO sub(3)-0.1Ba sub(0.8)Sr sub(0.2)TiO sub(3) is crystallized in rhombohedral distorted perovskite structure with space group R3c. The dielectric loss is investigated over wide range of temperature at 100 kHz. During its evolution, an anomaly is observed at ~300 [degrees]C which corresponds to T sub(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 sub(3)-0.1Ba sub(0.8)Sr sub(0.2)TiO sub(3) ceramic. The latter confirms which was previously mentioned. Furthermore, these results reveal considerable spectral changes in the vicinity of the Neel temperature T sub(N). Finally, this shift is discussed through structural, dielectric, thermal, vibrational and magnetic combination near the T sub(N) phase.