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X-ray diffraction pattern of the BFO-1 ceramics. The inset shows the schematic of the distorted prototypical rhombohedral unit cells.
X-ray photoelectron spectrums of the Fe lines and the O (inset) of the BFO-1 ceramics.
hysteresis loops of (a) the as-prepared and the postannealed BFO-1 ceramics (inset), and (b) the BFO ceramics without quench processing.
Magnetic property of the BFO-1 ceramics: (a) curve at room temperature, (b) temperature dependent magnetization, and (c) curve at .
The refined crystal structure parameters of the BFO-1 ceramics.
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