LATTICE CONSTANTS OF MONOCLINIC (La0.8Ca0.2)MnO3

Abstract
The homogeneous sample of (La0.8Ca0.2)MnO3 was prepared by the coprecipitation method and its lattice constants were determined by X-ray powder diffraction to be a=c=7.759Å, b=7.745Å and β=90.3°. The homogeneity of the distribution of ions can be seen in the narrow half-widths of X-ray reflections.