Room-temperature magnetic studies of La-modified BiFeO3 ceramic

Magnetic studies of La-modified BiFeO3 ceramic with x = 0.0, 0.20 and 0.25 synthesized by solution combustion method are reported. X-ray diffraction, Differential scanning calorimetry and Vibrating sample magnetometer are used to characterize the powder samples. La substitution for Bi in BiFeO3 ceramic increased the Room-temperature saturation magnetization (M-s) and remanent magnetization (M-r). Mossbauer spectroscopy confirmed the presence of single-phase material for the doped compositions. A significant enhancement of antiferromagnetic Neel temperature T-N and saturation magnetization M-s for x = 0.25 sample is observed as compared to BiFeO3. (C) 2011 Elsevier B.V. All rights reserved.