Bismuth ferrite (BiFeO₃)-based materials are multiferroic materials widely studied. This study reports that strong ferroelectricity and enhanced magnetic performance are simultaneously obtained in the quenched (1−x)BiFeO_3−xBaTiO₃ (BFBT100x, x = 0.2 and 0.3) ceramics. Quenching treatment can reduce the amount of defects and Fe²⁺ ions and make the defect dipole in a random state, which is conducive to improving the ferroelectricity and magnetism. Compared with the conventional sintered samples, the quenched ceramics have higher remnant and saturation polarization. As for magnetism, the coercive field (H_c) of the quenched ceramics is smaller and the quenching treatment can increase the maximum magnetization by up to 15%.

中文翻译：

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淬火的（1-x）BiFeO 3-x BaTiO 3陶瓷的铁电性和磁性增强

铁酸铋（BiFeO ₃）基材料是被广泛研究的多铁材料。这项研究报告指出，在淬火的（1- x）BiFeO _{3- x} BaTiO ₃（BFBT100 x，x = 0.2和0.3）陶瓷中同时获得强的铁电性和增强的磁性能。淬火处理可以减少缺陷和Fe ²⁺离子的数量，并使缺陷偶极子处于无规状态，有利于提高铁电性和磁性。与传统的烧结样品相比，淬火陶瓷具有更高的残留极化和饱和极化。至于磁力，矫顽场（H _c）的淬火陶瓷较小，淬火处理可以使最大磁化强度增加15％。