Author/Authors :
Yonggang Wang، نويسنده , , Gang Xu، نويسنده , , Linlin Yang، نويسنده , , Zhaohui Ren، نويسنده , , Xiao Wei، نويسنده , , Wenjian Weng، نويسنده , , Piyi Du، نويسنده , , Ge Shen، نويسنده , , Gaorong Han، نويسنده ,
Abstract :
Bi2Fe4O9 (BFO) nanoparticles were successfully synthesized by a hydrothermal method at a temperature as low as 100 °C. The as-prepared powders, characterized by X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), transmission electron microscope (TEM) and physical property measurement system (PPMS), exhibited a pure BFO phase about 100 nm size with uniform sheet-like shape and exhibited an AF order at room temperature. It was found that high alkali concentration and alkali ion Na+ played a key role in the formation of BFO nanoparticles at a low temperature of 100 °C.
