Diffused phase transition and multiferroic properties of 0.57(B(1-x)La(x))FeO(3)-0.43PbTiO(3) crystalline solutions

作者：Chen Jianguo^*; Qi Yufa; Shi Guiyang; Yan Xiaolong; Yu Shengwen; Cheng Jinrong

来源：Journal of Applied Physics, 2008, 104(6): 064124.

DOI：10.1063/1.2986497

• Dielectric constants
• Diffused phase transitions
• Multiferroic characteristics
• Multiferroic properties
• Paraelectric phase-transition
• Remnant magnetization
• Solid-state reaction methods
• Transition temperatures

Crystalline solutions of 0.57(B(1-x)La(x))FeO(3)-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.

• 出版日期2008-9-15
• 单位上海大学