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Isovalent substitution effects in the Na layer of y-Na0.75CoO2 thermoelectric oxide

Journal Article


Abstract


  • K and Rb substitution effects in Na layer of Na0.75CoO2 oxide are reported. K substitution caused elongation of lattice parameter c, while Rb substituted sample did not have such effect. Transport properties measured showed that all samples are metallic. Rb substitution eliminates characteristic transition point from ÃÂT curves at room temperature. High temperature electrical resistivity measurements revealed, that Rb substitution significantly reduced sodium cation migration in the samples.

Authors


  •   Peleckis, Germanas
  •   Karppinen, Maarit (external author)
  •   Yamauchi, Hisao (external author)

Publication Date


  • 2007

Citation


  • Peleckis, G., Karppinen, M. & Yamauchi, H. (2007). Isovalent substitution effects in the Na layer of y-Na0.75CoO2 thermoelectric oxide. Physica C: Superconductivity and its Applications, 460-462 (Part 1), 485-486.

Scopus Eid


  • 2-s2.0-34548190723

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/42

Number Of Pages


  • 1

Start Page


  • 485

End Page


  • 486

Volume


  • 460-462

Issue


  • Part 1

Abstract


  • K and Rb substitution effects in Na layer of Na0.75CoO2 oxide are reported. K substitution caused elongation of lattice parameter c, while Rb substituted sample did not have such effect. Transport properties measured showed that all samples are metallic. Rb substitution eliminates characteristic transition point from ÃÂT curves at room temperature. High temperature electrical resistivity measurements revealed, that Rb substitution significantly reduced sodium cation migration in the samples.

Authors


  •   Peleckis, Germanas
  •   Karppinen, Maarit (external author)
  •   Yamauchi, Hisao (external author)

Publication Date


  • 2007

Citation


  • Peleckis, G., Karppinen, M. & Yamauchi, H. (2007). Isovalent substitution effects in the Na layer of y-Na0.75CoO2 thermoelectric oxide. Physica C: Superconductivity and its Applications, 460-462 (Part 1), 485-486.

Scopus Eid


  • 2-s2.0-34548190723

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/42

Number Of Pages


  • 1

Start Page


  • 485

End Page


  • 486

Volume


  • 460-462

Issue


  • Part 1