谷歌浏览器插件
订阅小程序
在清言上使用

Weak Ferromagnetism in Morphotropic Phase Boundary of BiFeO3-based Materials

Journal of alloys and compounds(2024)

引用 0|浏览6
暂无评分
摘要
The weak ferromagnetism in BiFeO3 classically arises from the canting of the antiferromagnetically aligned Fe3+ spins by the Dzyaloshinskii–Moriya (DM) interaction. Here, we observed an abnormally weak ferromagnetism in morphotropic phase boundary (MPB) compounds of BiFeO3, which could not be fulfilled by sole DM interaction. The magnetic properties were studied for two different polymorphs of the rhombohedral/orthorhombic (R-O) and rhombohedral/tetragonal (R-T) structures. The R-T composition displays a superior weak ferromagnetism over the R-O one at a small applied magnetic field (10kOe), while a comparable value is observed in a high magnetic field (70kOe). The phase switching controlled by external stimuli revealed that magnetization is caused by both the weak ferromagnetism associated with DM interaction and the ferromagnetic component related to the phase boundary spins located at the superficial region of the coexisting structural phases.
更多
查看译文
关键词
Multiferroics,Morphotropic phase boundary,Phase boundary ferromagnetism
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要