A technique for the synthesis of bismuth orthoferrite nanopowder doped with cobalt ions activated using microwave radiation is proposed. Exposure to microwave radiation followed by ultrasonic treatment of the synthesized BiFeO 3 samples using sodium hydroxide as a precipitant makes it possible to obtain spherical BiCo x Fe 1- x O 3 particles with a narrow particle-size distribution in the range of 35–60 nm. Bismuth ferrite doped with cobalt ions has a considerably higher magnetization and magnetic susceptibility than an undoped BiFeO 3 .

中文翻译：

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掺钴铁氧体铋纳米粉体的微波合成及磁性能

提出了一种用微波辐射活化的钴离子掺杂铋正铁氧体纳米粉体的合成技术。暴露于微波辐射，然后使用氢氧化钠作为沉淀剂对合成的 BiFeO 3 样品进行超声处理，可以获得粒径分布在 35-60 nm 范围内的球形 BiCo x Fe 1- x O 3 颗粒. 掺杂有钴离子的铋铁氧体具有比未掺杂的 BiFeO 3 高得多的磁化强度和磁化率。