Figure 6. (A) Oxygen partial pressure pO2 dependence of the DC conductivity σDC of Ca1.46Ti1.38Nb1.11O7 at 500 and 900 °C; (B) Arrhenius plots of σDC of Ca1.46Ti1.38Nb1.11O7 in wet (water vapor pressure of 0.042 atm) and dry air.
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