Structural, morphological, optical, magnetic and ferroelectric properties of Ba0.2La0.8Fe2O4 nanofibers

Abstract

The structural, morphological, optical, magnetic, and ferroelectric properties were studied for the Ba0.2La0.8Fe2O4 (BLF) through hydrothermal method. The face-centered cubic structure is confirmed from the X-Ray diffraction (XRD) analysis with some impurities. The particle size calculated from XRD is 21 nm. The Fourier transform infrared spectroscopy (FTIR) revealed the spinel structure of the synthesized samples. The surface morphology analyzed with the help of field emission scanning electron microscopy, transmission electron microscope. In addition, UV- Visible spectroscopy was used for the energy band gap (Eg) estimation and it is found as 2.05 eV. The M-H loop analysis makes clear that the synthesized samples have low magnetization with a small loop area. The P-E loop analysis expressed the ferroelectric nature of the synthesized sample.

Optical and functional properties of hydrothermally synthesized tetragonal Ba0.4Cu0.6−xLaxTiO3 (x = 0.2–0.6) nanoparticles

“…From this data, it was understood that there was a proportional relationship between average crystallite size and microstrain. This type of observation was also found in the literature [20][21][22][23][24][25][26]. The lattice constants were evaluated and presented in table 1.…”