# A novel method to control oxygen stoichiometry and thermoelectric properties in (RE)BaCo2O5+ \delta

Dasgupta, T and Sumithra, S and Umarji, AM (2008) A novel method to control oxygen stoichiometry and thermoelectric properties in (RE)BaCo2O5+ \delta. In: Bulltein of Materials Science, 31 (6). pp. 859-862.

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Rare earth cobaltites of the type $(RE)BaCo_2O_{5+ \delta }$ (RE = Y, Gd, Eu and Nd) were synthesized by solid state technique. A novel, fast quenching technique was used to tune the oxygen content in these compounds.Room temperature Seebeck and electrical resistivity measurements were used to infer the oxygen content. A maximum in the S and \rho was observed for all the compositions when \delta value was close to 0.�5.