Research Article

Chemical Reduction of Nd1.85Ce0.15CuO4−δ Powders in Supercritical Sodium Ammonia Solutions

Figure 3

Final Rietveld refinement patterns of (a) Nd1.85Ce0.15CuO3.975 powders without treatments and (b) Nd1.85Ce0.15CuO3.961 powders ammonothermally treated at 54°C in sodium ammonia solutions. Black crosses represent the experimental values and the red solid line the calculated pattern. The green solid line at the bottom is the difference between the experimental and calculated data. The blue bars represent the position of Bragg reflections.
(a)
(b)