Figure 1
Structural characterization. (a) XRD profiles of Nd2Zr2O7, Nd2–xUxZr2O7+δ (A−0.1, A−0.2, A−0.4) and Nd2Zr2–yUyO7+δ (B−0.1, B−0.2, B−0.4). (b) Rietveld refinement of XRD profile for Nd2Zr2O7 (NZO). (c) Evolution of the fitted lattice parameters with the U concentrations. Raman spectra of (d) Nd2–xUxZr2O7+δ samples and (e) Nd2Zr2–yUyO7+δ samples. |