Abstract Micrometre-sized pure BiFeO3 (BF) and Ce-doped Bi0.9Ce0.1FeO3 (BCF) powders were synthesized by using conventional hydrothermal (H) and microwave assisted hydrothermal (MH) methods. The BF-H and BCF-H show obviously enhanced weak ferromagnetic characteristic, in which the BCF-H exhibits excellent magnetic performance, with significantly increased maximum magnetization of ∼3.6 emu/g (under 50 kOe magnetic field) and remanent magnetization of ∼0.268 emu/g at room temperature. The superior magnetic property of BCF-H could be attributed to the suppression of spiral structure and the modulation of canting angle of spins in antiferromagnetic sublattices.

中文翻译：

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通过铈取代增强 BiFeO3 的磁性能

摘要 采用常规水热法（H）和微波辅助水热法（MH）合成了微米级纯BiFeO3（BF）和掺Ce的Bi0.9Ce0.1FeO3（BCF）粉末。BF-H和BCF-H表现出明显增强的弱铁磁特性，其中BCF-H表现出优异的磁性能，最大磁化强度显着提高~3.6 emu/g（50 kOe磁场下），剩磁~0.268室温下鸸鹋/g。BCF-H 的优异磁性可归因于螺旋结构的抑制和反铁磁亚晶格中自旋倾斜角的调制。