X-ray diffraction patterns for BaR₂PdO₅ (R=Nd, Sm, Eu, and Gd)

Abstract

Calculated patterns for the BaR₂PdO₅ series, in which X is Pd and R=Nd, Sm, Eu, or Gd, have been prepared for materials characterization until experimental patterns can be determined. These compounds are isostructural to the superconductor related “brown phases” BaLa₂CuO₅ and BaNd₂CuO₅, which are tetragonal with space group P4/mbm, Z=4. The cell parameters of the Eu and Gd compounds were derived from the La and Nd analogs. The calculated patterns of these four compounds compared well to an experimental pattern of BaNd₂CuO₅.