Synthesis, structure, dielectric properties, and electrical conductivity of (La0.2Sr1.8)[Ga(Fe1−x Mgx)]O5.1−x/2 solid solutions |
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| Authors: | S. V. Zaitsev G. M. Kaleva K. I. Furaleva V. L. Zefirova E. D. Politova |
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| Affiliation: | (1) Karpov Research Institute of Physical Chemistry, Russian State Scientific Center, ul. Vorontsovo pole 10, Moscow, 105064, Russia |
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| Abstract: | (La0.2Sr1.8)[Ga(Fe1?x Mgx)]O5.1?x/2 oxygen-ion conducting ceramics have been prepared by solidstate reactions. The cation substitutions have been shown to give rise to lattice expansion, accompanied by a reduction in electronic conductivity and a rise in ionic conductivity owing to the increase in the concentration of oxygen vacancies upon a reduction in transition-metal content. |
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