Chemical Reduction of Nd_1.85Ce_0.15CuO_4−δ Powders in Supercritical Sodium Ammonia Solutions

Figure 1

X-ray diffraction patterns of Nd_1.85Ce_0.15CuO_4−δ powders (a) before and (b) after ammonothermal treatments at 54°C in sodium ammonia solutions.

(a)

(b)