Structural and multiferroic characterization of BiFeO3-PbTiO3-based solid solution with an extra phase
Structural and multiferroic characterization of BiFeO3-PbTiO3-based solid solution with an extra phase
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具有额外相的 BiFeO3-PbTiO3 基固溶体的结构和多铁性表征
DOI：
10.1016/j.ceramint.2018.09.065
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发表时间：
2018
影响因子：
5.2
通讯作者：
Cheng Jinrong
中科院分区：
文献类型：
--
作者：
Jiang Xiuwen;Jiang Ying;Chen Jianguo;Hu Dongli;Xing Juanjuan;Wang Binjie;Cheng Jinrong
铁酸铋和钛酸铅之间的固溶体表现出提供优异的多铁性的高潜力。然而，其机理尚不清楚，特别是对额外相的形成和影响缺乏关注。在La/Ga掺杂的BiFeO 3-PbTiO 3固溶体中发现了一个新的额外相，通过能量色散谱和多轴电子衍射技术证实了该额外相为Pb（Fe，Ga）12 O 19。Pb（Fe，Ga）12 O 19相可以通过控制BiFeO 3-PbTiO 3基陶瓷中Pb和Fe的含量来控制，并在提高铁磁性方面发挥重要作用。
Solid solution between bismuth ferrite and lead titanate exhibits high potential to deliver excellent multiferroic performance. However, the mechanism is still not clear, especially that the attentions paid to the formation and influence of extra phases are lacking. Here, we revealed a new extra phase in La/Ga-doped BiFeO3-PbTiO3solid solution, which was demonstrated to be Pb(Fe,Ga)12O19by energy dispersive spectroscopy and multi-axis electron diffraction techniques. Such Pb(Fe,Ga)12O19phase could be controllably manipulated by exceeding the content of Pb and Fe in the BiFeO3-PbTiO3-based ceramics, and has been demonstrated to play an important role in improving the ferromagnetism.