Diffused phase transition and multiferroic properties of 0.57(B1-xLax)FeO3-0.43PbTiO3 crystalline solutions

被引：30
作者：
Chen, Jianguo [1 ]
Qi, Yufa [1 ]
Shi, Guiyang [1 ]
Yan, Xiaolong [1 ]
Yu, Shengwen [1 ]
Cheng, Jinrong [1 ]
机构：
[1] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 06期
关键词：
D O I：
10.1063/1.2986497
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Crystalline solutions of 0.57(B1-xLax)FeO3-0.43PbTiO(3) (BLF-PT) for x=0, 0.1, 0.2, and 0.3 have been fabricated by the solid state reaction method. The dielectric constant of BLF-PT was significantly enhanced by using I-a substitutions, reaching about 1850 for x=0.3. The ferroelectric-paraelectric phase transition of BLF-PT becomes more diffused with a decreased transition temperature for higher L,a concentration. BLF-PT of x=0.2 exhibits multiferroic characteristics with the simultaneously enhanced remnant magnetization and polarization of 0.119 emu/g and 33.5 mu C/cm(2), respectively. (c) 2008 American Institute of Physics.
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页数：5
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