Structural Evolution and Physical Properties of Nano-Crystalline BiFeO₃

Abstract:

The effect of temperature on the structural evolution and physical properties of nanocrystalline BiFeO₃ compound has been studied systematically. The results show that the compound crystallizes in the hexagonal LiNbO₃ type-structure (space group R3c) and the structural characterization was a=b=5.5979 Å, c=13.9163 Å and V=387.43 Å3. The average crystallite size was about 32.5 nm. The Neel temperature was the same in the vacuum and air conditions, but the decomposition temperature in the air condition was higher 190°C than that of the vacuum condition.

• Periodical: Materials Science Forum (Volume 852)
• Pages: 199-204
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.852.199
• Online since: April 2016
• Authors: Qing Rong Yao*, Yi Hao Shen, Peng Cheng Yang, Huai Ying Zhou, Guang Hui Rao, Jian Qiu Deng
• Keywords: Bi-Based Magnetoelectric Perovskites, Crystal Structure, Structural Evolution, X-Ray Diffraction

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