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Controlled fabrication of BiFeO3 uniform nanoparticles and their magnetic behaviors

YAN LU1, JIANKANG LI1,2,*

Affiliation

  1. Jiangsu Key Laboratory for Environment Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China
  2. Schools of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009, China

Abstract

Uniform BiFeO 3 (BFO) nanoparticles was prepared by hydrothermal synthesis method using Fe(NO 3 3 ·9H 2 O and Bi(NO 3 3 ·5H 2 O as the basic raw materials. Studies have shown that pure phase BFO nanoparticles could be prepared successfully under hydrothermal conditions of reaction temperature of 200 °C and time of 24 h. Particle shapes of the powder are uniform as well as the sizes, which have not yet been reported, and remanen t magnetization of which reaches 0.054 emu/g. Temperature dependences of the saturation magnetization curve was measured, from which Curie temperature and Neel temperature of BFO nanoparticles are confirmed, predicting the coupling between the ferromagneti sm and ferroelectricity should be strong. Possible formation mechanism of the microcrystal was also proposed..

Keywords

Hydrothermal synthesis, BiFeO3, Nanoparticles, Raman.

Citation

YAN LU, JIANKANG LI, Controlled fabrication of BiFeO3 uniform nanoparticles and their magnetic behaviors, Optoelectronics and Advanced Materials - Rapid Communications, 7, 1-2, January-February 2013, pp.96-99 (2013).

Submitted at: Sept. 28, 2012

Accepted at: Feb. 20, 2013