Lanthanum doped BiFeO3 powders: Syntheses and characterization

作者：Gonzalez Garcia F; Riccardi C S; Simoes A Z^*

来源：Journal of Alloys and Compounds, 2010, 501(1): 25-29.

DOI：10.1016/j.jallcom.2010.04.049

• Ferroelectrics
• Chemical syntheses
• Powder metallurgy
• X-ray diffraction

A soft chemistry route was employed to fabricate single-phase lanthanum modified BiFeO3 (BFO) powders. Effects of lanthanum concentration on the phase formation, grain size and morphologies of BFO powders were systematically investigated. X-ray diffraction results indicated that perovskite phase have been synthesized at the temperature of 850 degrees C/2 h while infrared data indicates no traces of carbonate. Raman analysis reveals that lanthanum atom substitutes bismuth into the BFO site. A homogeneous size distribution of BFO powders was evidenced by scanning electron microscopy.

• 出版日期2010-7-2