Recapitulation of the magnetic and magnetodielectric properties of (1-x)LiNbO3 - (x)La0.9Na0.1MnO3 (x = 0.1, 0.2, 0.3) composites

• Published in: Solid state communications 2024-07, Vol.385, p.115498, Article 115498
• Main Authors: RK, Veena, Anand, Anitha, Manjula devi, M., Veena, V.S., Cyriac, Jincemon, Sashank, S., Mathew, Sunny, S, Sagar
• Format: Article
• Language: English
• Subjects: Activation energy; Lanthanum based composites; Magnetodielectric coupling; Polarization
• ISSN: 0038-1098; 1879-2766
• DOI: 10.1016/j.ssc.2024.115498

The present study provides structural, ferroelectric, magnetic, magnetodielectric and the optical properties of the composite (1-x)LiNbO3-(x)La 0.9Na 0.1MnO3 with different values of x (where x = 0.1, 0.2 and 0.3) at room temperature. Ferroelectric phase LiNbO3(LNB) and magnetic phase La 0.9Na 0.1MnO3(LNMO) were synthesized by conventional solid state reaction method. Rietveld X-ray diffraction pattern reveals the structural purity of the synthesized samples. The ferroic and antiferroic nature of the composites were investigated from M-H hysteresis loop, at x = 0.3 shows highest value of saturation magnetization. The reduced ferroelectric nature of the prepared samples was revealed through P-E hysteresis loop measurement with sample x = 0.1 shows highest value of remnant polarization room temperature. Magnetoelectric coupling nature of the composite sample was confirmed through magnetodielectric measurement. Among the studied composites highest value of magnetodielectric percentage (MD%) at 1 kHz is obtained for sample with x = 0.3. Enhanced magnetodielectric coupling coefficient value of 5.5 is achieved for the sample with x = 0.3. Optical properties were examined from UV absorbance analysis technique. On increasing LNMO content, there was a slight decrease in the band gap energy. The enhanced magnetoelectric coupling property of the present synthesized composite paves the way for more room temperature multifunctional materials. •Multiferroic composites (1-x) LiNbO3-(x) La0.9Na0.1MnO3 synthesized via solid state reaction method.•Electric polarization decreases with increase in magnetic component.•Displays ferromagnetic nature at room temperature with increase in x values.•Magnification of the magnetodielectric coefficient values with an increase in x components.•Applicable for room temperature multifunctional devices.