Multiferroic properties of modified BiFeO3-PbTiO3-based ceramics: Random-field induced release of latent magnetization and polarization

作者：Wang NG^*; Cheng J; Pyatakov A; Zvezdin AK; Li JF; Cross LE; Viehland D

来源：Physical Review B, 2005, 72(10): 104434.

DOI：10.1103/PhysRevB.72.104434

It has been found that aliovalent-substituted BiFeO3-PbTiO3-based polycrystalline materials have significantly enhanced multiferroic properties. Relative to unmodified BiFeO3, our results for modified BiFeO3-PbTiO3-based ceramics reveal: (i) a dramatic increase in the electric-field-induced polarization; and (ii) the establishment of a remanent magnetization. The results evidence the destruction of a space-modulated spin structure in bulk materials, via substituent effects, releasing a latent magnetization locked within the cycloid.

• 出版日期2005-9
• 单位上海大学; 美国弗吉尼亚理工大学(Virginia Tech)