Conduction behavior of Pr1−xSrxMn1−yInyO3−δ perovskites

Using a structural field map for ABO3 perovskites outlining the state of their d-electrons and their conduction behavior, strategies for semi-conducting and metallic conducting perovskites can be investigated. In this study the electrical properties of the Pr1−xSrxMn1−yInyO3−δ perovskites have been characterized. The Pr1−xSrxMn1−yInyO3−δ perovskites show semi-conducting behavior for all compositions. Indium decreases the conductivity and increases the activation energy. The conductivity was found to be independent of oxygen partial pressure in the range from approximately 20% to 20 ppm and at temperatures up to 800 °C. The highest conductivity value of 143 S/cm was recorded for Pr0.5Sr0.5MnO3−δ at 800 °C.