Figure 8
LaBaCo2O6−δ and La0.5Ba0.5CoO3−δ equilibrium electrical conductivities (σ) as a function of (a) temperature, T, and (b) normalized oxygen content of samples, 6−δ, in air. The Arrhenius plot, ln(σT) versus T−1, is show in the inset. Open circles: LaBaCo2O6−δ; filled circles: La0.5Ba0.5CoO3−δ; open triangles: La0.5Ba0.5CoO2.36. |