Synthesis, and measurement of structural and magnetic properties, of La1−xCdxCoO3 perovskite ceramic oxides

Abstract

Perovskite-type Cd-doped LaCoO 3 materials were synthesized by a simple solution-based combustion process. The synthesized materials were characterized by powder Xray diffraction (XRD), scanning electron microscopy (SEM), diffuse reflectance (DR) in the UV-VIS, and magnetic property measurements. The parent LaCoO 3 compound showed spin-glass transition at low temperatures, and with progressive Cd doping, showed transition to paramagnetic ordering. The changes in magnetic properties of the materials are correlated to the changes in structural features resulting from the Rietveld structural refinement of the materials.

Synthesis and properties of polycharge phases in the system La-Li-M-Co-O (M=Ca, Sr, Ba)

“…The band on the spectra with E = 2.07eV corresponds to the d-d-transition of the Со 2+ ion in the tetrahedral oxygen environment characteristic of spinel Co3O4 [17]. Low Eg values indicate the possibility of using lanthanum cobaltates as potential photocatalysts along with classical TiO2 (Eg = 3.2 eV) [18][19].…”