Influence of Ba doping on the structural and bonding characteristics of sol-gel prepared LaMnO3

In this paper the structural, crystallization and bonding properties of La1-xBaxMnO3 (LBMO) (0 ≤ x ≤ 0.5) samples is reported. The refinement of the x-ray diffraction (XRD) pattern of the sol-gel synthesized samples establishes structural phase formation, lattice parameter and grain size variation with Ba doping. The thermogravimetric analysis and differential scanning calorimetric (TGA-DSC) studies depict the transformation processes the samples undergo while arriving at the perovskite structure. The Fourier Transform Infrared (FTIR) spectra show the influence of Ba content on the optical phonon modes. The studies are concluded by demonstrating a correlation between the sample structural and bonding characteristics.