Peculiar magnetism of BiFeO3 nanoparticles with size approaching the period of the spiral spin structure
作者： Fengzhen Huang , Zhijun Wang , Xiaomei Lu , Junting Zhang , Kangli Min
DOI: 10.1038/SREP02907
关键词:
摘要: Size effect of multiferroics is important for its potential applications in new type miniaturized multifunctional devices and thus has been widely studied. However, there special size the materials with spiral modulated spin structure (such as BiFeO3)? It still an issue to be investigated. In this report, structural, magnetic magnetoelectric coupling properties are investigated sol-gel prepared BiFeO3 nanoparticles various sizes. found that a structural anomaly arises particles close 62 nm period structure, which induces obviously increased ferromagnetism. addition, large observed nanoparticles. Our result provides another insight into BiFeO3, also clue at nanoscale.
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