The investigation of structural and vibrational properties and optical behavior of Ti-doped LaBaCaMnTi O ( = 0.00, 0.05 and 0.10) manganites.

The influence of Ti ions incorporated into the B site on the structural, vibrational and optical properties of LaBaCaMnTi O (LBCMT ), a polycrystalline compound prepared by a molten salt method, was discussed. The X-ray diffraction (XRD) studies confirmed that at room temperature these compounds crystallize in the rhombohedral phases of 3̄. Rietveld refinement indicated that the octahedron (Mn/Ti)O underwent a slight deformation and the bond angles decreased with the increase in the Ti content.

Structure properties and dielectric relaxation of CaNaTiNbO ceramic.

In this paper, the synthesis of CaNaTiNbO (CNTN) ceramic by a solid-state reaction method is reported. The results of Rietveld refinement of X-ray diffraction (XRD) patterns at room temperature showed a pure tetragonal perovskite (4 space group). Raman spectroscopy analysis, ranging from of 50 to 1000 cm, at room temperature, validates the results of XRD.