The (La0.9Sr0.1)[(Ga1-xCrx)0.8Mg0.2]O3−δ (x = 0 to 0.35) perovskite-like solid solutions were prepared by ceramic processing route, and their structural parameters, microstructure, and electrical conductivity were determined. The results indicated that the cation substitutions reduce the unit-cell volume of the solid solutions and raise their total conductivity via an increase in electronic conductivity, while their ionic conductivity seems to decrease with increasing x.

Structure and Electrical Conductivity of (La0.9Sr0.1)[(Ga1−xCrx)0.8Mg0.2]O3−δ (x = 0–0.35) Solid Solutions. E.D.Politova, A.K.Avetisov, R.R.Zinurov, G.M.Kaleva, V.Z.Mordkovich, A.V.Mosunov, S.Y.Stefanovich: Inorganic Materials, 2006, 42[6], 689-95