Improved multiferroic properties of bismuth ferrite and sodium bismuth titanate based multiferroic composites

BLFO substituted NBT ceramics having compositions (1-x) Na0.5Bi0.5TiO3 – x (Bi0.8La0.2FeO3) {x=0.0, 0.20) were fabricated by conventional solid-state reaction method. Preliminary analysis of structure was performed by XRD technique and confirmed formation of single phase crystalline materials. Further Rietveld analysis of XRD data revealed that both samples crystallized into single phase with rhombohedral symmetry (R3c space group). Dielectric response of composites show dispersion at low frequency and steeply decreases with frequency and remains constant at higher frequencies. M-H hysteresis looprecorded at room temperature shows anenhancement in magnetization with BLFO substitution.