Oxygen Content and Thermodynamic Stability of YBaCo₂O_6−δ Double Perovskite

Figure 3

X-ray diffraction pattern and its matching refinement plot of BaCoO₃, interpreted as a mixture of BaCoO₃ and BaCoO_2.61: observed X-ray diffraction intensity (points) and calculated curve (line). The bottom curve is the difference of patterns, y_obs − y_cal, and the small bars indicate the angular positions of the allowed Bragg reflections.