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Erschienen in:
29.11.2017
Enhanced room temperature multiferroic properties of nickel ferrite and lithium niobate nanocomposites
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 5/2018
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Abstract
A series of nanocomposites xNiFe2O4–(1 − x)LiNbO3 (x = 0.20, 0.30 and 0.40) were synthesized by solid state reaction method. The existence of phases in the composite was confirmed by XRD. The TEM and HRTEM image reveals the existence of two phases and high crystallinity of the sample. Average particle sizes were measured by transmission electron micrograph which are 23.7, 21, 23.6 nm for the 20:80, 30:70 and 40:60 composites respectively. Composites exhibit hysteresis loops typical of ferromagnetic behavior. The maximum values of magnetic parameters Mr and Ms are 2.704 and 9.755 × 10− 3 emu/g respectively for 40:60 composition of the composite. The P–E loop studies show that 20:80 composite exhibits the highest Pr and Ec values which are 0.30 µC/cm2 and 22.42 kV/cm respectively. The composite with 40:60 composition shows low leakage current compared to the other.