弛豫多铁性材料研究进展

魏永星, 靳长清, 曾一明

Progress of Relaxor Multiferroic Materials

Yong-Xing WEI, Chang-Qing JIN, Yi-Ming ZENG

表2 BiFeO3基弛豫多铁材料磁电特性

Table 2 Polar and magnetic orderings of the BiFeO3 based multiferroic materials

Compositions Polar ordering Magnetic ordering Bi(Fe0.5Mn0.5)O3 thin films[45] Ferroelectric relaxor Tm = 440 K @1 MHz Tf = 314 K Magnetic glass state Tf2 =122 K 0.65BiFeO3- 0.35BaTiO3 ceramics[47] Ferroelectric relaxor Tm = 687 K @1 MHz Ferrimagnetic 0.67BiFeO3- 0.33BaTiO3 single crystal[50] Ferroelectric relaxor Tm = 650 K @0.1 MHz Magnetic glass state 0.5Bi(Fe0.5La0.5)O3- 0.5PbTiO3 ceramics[54] Ferroelectric relaxor Tm = 520 K @0.1 MHz Ferrimagnetic 0.6BiFeO3- 0.4Bi1/2K1/2TiO3 ceramics[55-56] Ferroelectric relaxor Tm = 703 K @0.1 MHz Ferrimagnetic TN < 500 K 0.4BiFe0.9Co0.1O3- 0.6Bi1/2K1/2TiO3 ceramics[59] Ferroelectric relaxor Tm = 693 K @0.1 MHz Tf < 573 K Ferrimagnetic TN = 670 K