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An investigation on Structure and Electrical Conductivity of Sm0.5−xGdxSr0.5CoO3−

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Sm0.5−xGdxSr0.5CoO3− (SGSC, x=0, 0.1, 0.2, 0.3, 0.4, 0.5) powders were synthesized by a solution-combustion method. SGSC formed the major perovskite phase with an orthorhombic symmetry after calcined at 1200°C. The electrical measurements indicated that the Gd3+content have a strong influence on the electrical conductivities of SGSC. It was found that the electrical conductivities of SGSC was firstly increased then decreased as the Gd3+ content changed from 0 to 0.5. The highest electrical conductivity with a value 1820 S/cm was obtained when the amount of Gd reached to 0.2.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2009.03593.x

Affiliations: School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, China

Publication date: June 1, 2010

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