Effects of Mn doping on multiferroic and magnetocapacitive properties of 0.33Ba0.70Ca0.30TiO3–0.67BiFeO3 diphasic ceramics

Magneto-electric coupling study in multiferroic La0.7Ba0.3MnO3–BaTiO3 composite ceramic at room temperature

“…This value is greater than o 0.2% of Mn doped 0.33Ba 0.70 Ca 0.30 TiO 3 -0.67BiFeO 3 diphasic ceramics at 3 kOe in Ref. [7] and o 1% of BaTiO 3 À LaMnO 3 composites at 9 T in Ref. [8].…”

“…Due to weak ME coupling at and above room temperatures in single-phase materials, increasing interest has been focused on composite multiferroics. Composite multiferroics can be labeled according to their architectures, such as particulate-based composites (0-3) [4][5][6][7][8], layered heterostructures (2-2) [9][10][11][12], pillars within a 3-D matrix (1)(2)(3) [13][14], and core-shell structures [15][16][17]. Compared with the weak mechanical coupling in 2-2 structures and difficulty in implementation of 1-3 and core-shell structures, particulate-based composites still attracted great attention because of their relative large mechanical coupling, superior mechanical strength and ease of fabrication.…”

“…Cai-Xia Li [7] group has synthesized 0.33Ba 0.70 Ca 0.30 TiO 3 -0.67BiFeO 3 diphasic ceramics with two perovskite structures. The ceramics exhibit the magneto-capacitance effect, which is defined as the relative change of the dielectric constant as a function of the applied magnetic field and expressed as ((ε r (H) À ε r (0))/ε r (0)).…”

Manganese‐Doped BiFeO3–BaTiO3 High‐Temperature Piezoelectric Ceramics: Phase Structures and Defect Mechanism

“…Mn is an effective additive being used widely in many perovskite piezoelectric ceramics to tailor the electrical properties . Mn can not only effectively remain the valence balance as dopants but also accumulate at the grain boundary by excess manganese oxide which increases the resistivity of the ceramics.…”

Ferroelectric and piezoelectric properties of Fe doped lead free BaTiO<inf>3</inf>-CaTiO<inf>3</inf> electroceramics

“…multiferroics. Among the known single phase multiferroics, BiFeO 3 is one of the wellstudied single phase multiferroic materials at room temperature, which has high ferroelectric transition temperature (T C ) ~830 o C and an antiferromagnetic Neel's temperature (T N ) ~370 o C and also it is lead free [6,7,8]. However, it has few drawbacks such as weak magnetization, difficult to synthesize, low density, etc which limits its practical applications [8,9].…”