• A novel method to control oxygen stoichiometry and thermoelectric properties in (RE)BaCo2O5+𝛿

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    • Keywords


      Oxides; chemical synthesis; X-ray diffraction; thermogravimetric analysis; electrical properties.

    • Abstract


      Rare earth cobaltites of the type (RE)BaCo2O5+𝛿 (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 ρ was observed for all the compositions when 𝛿 value was close to 0.5.

    • Author Affiliations


      T Dasgupta1 S Sumithra1 A M Umarji1

      1. Materials Research Centre, Indian Institute of Science, Bangalore 560 012, India
    • Dates

  • Bulletin of Materials Science | News

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