Synthesis and magnetoelectric studies on Na0.5Bi0.5TiO3–BiFeO3 solid solution ceramics

La2Bi7Fe5Ti3O27: Structural, electrical and magnetic properties

“…Based on the best agreement between observed (obs) and calculated (cal) interplaner spacing d (i.e., (d obs − d cal ) = minimum), orthorhombic unit cell with lattice parameters: a = 5.4986 (22) Å, b = 5.6153 (22) Å, and c = 73.3400 (22) Å (estimated error in parenthesis) were selected. The value of b/a ratio (orthorhombicity) was found to be 1.021 which is comparable to that of other Aurrivillius systems [11,[13][14][15]. The microstructure of La 2 Bi 7 Fe 5 Ti 3 O 27 ( Fig.…”

“…The plate-like grains of the compound lead to anisotropy in the ferroelectric and other properties [16]. Similar microstructures of some other members of the family have been reported earlier [11,17,18].…”

“…Hui et al [9] and Chen et al [10] have reported the effect of La substitution on the ferroelectric relaxor characteristics of some compounds of the Aurivillius family (i.e., Sr 2 Bi 4−x La x Ti 5 O 18 (x ≥ 0.5) and Bi 4−x La x Ti 3 O 12 ). Recently Ramana et al [11] reported the ferroelectromagnetic properties in these compounds. For multifunctional device applications high-purity, high resistively and high dielectric constant multiferroic compounds are required, which couple the magnetic and electrical ordering in wide temperature range.…”

AC impedance studies on LiFe5−xMnxO8 ferrites

“…Further, coalescing of all of these curves (Fig. 3a-d) at higher frequencies mimics the reduction of space charge polarization with increasing frequency [10].…”

Dielectric and optical properties of BiFeO3–(Na0.5Bi0.5)TiO3 thin films deposited on Si substrate using LaNiO3 as buffer layer for photovoltaic devices

“…It is a strong ferroelectric with a remanent polarization and coercive field of 38 C cm −2 and 73 kV cm −1 , respectively. Recent researchers [22,23] indicated that a pure perovskite structure can be obtained in BiFeO 3 -(Na 0.5 Bi 0.5 )TiO 3 (BFO-NBT) ceramic compounds, which is possibly suitable for depositing the corresponding films. Since orientation has a great impact on the domain structure as well as the optical and ferroelectric properties, it is therefore desirable to analyze the structural, optical, and ferroelectric properties of oriented thin films.…”