Magnetic properties of $\mathrm{Bi}\mathrm{Fe}{\mathrm{O}}_{3}$ (BFO) single crystals with rhombohedral symmetry $(R3c)$ were measured in the temperature range of $4.2--350\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. Zero field cooled (ZFC) and field cooled magnetization curves split below $250\phantom{\...
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