Figure 3From: Ionic Transport Properties in Nanocrystalline Ce0.8A0.2O2-δ (with A = Eu, Gd, Dy, and Ho) Materialsa and b Complex impedance plots of the nanocrystalline GDC0.2 and EuDC0.2 at 300°C. GI and GB correspond to the grain interior and grain boundary, respectively; c and d are the complex impedance plots of DyDC0.2 and HDC0.2 at 400°C. Symbols are the obtained data points, and solid semicircles are the fitted dataBack to article page