Nonstoichiometry, structure, and electrical properties of "SrPrO 3"

Mary A. Thundathil, Camille Y. Jones, G. Jeffrey Snyder, Sossina M. Haile*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The single-phase composition with the perovskite structure type in the Sr-Pr-O system has been identified as (Sr 0.935Pr 0.0430.022)Pr 1.0O 3 from neutron diffraction refinements, chemical analysis, and thermogravimetric analysis. The cation deficient oxide crystallizes in a GdFeO 3-type orthorhombic structure, space group Pbnm, with lattice parameters a = 5.988 00(17), b = 6.121 36(17), c - 8.548 58-(24) Å, and Z = 4 at 300 K. Thermogravimetric analysis confirms that the compound is not oxygen deficient. (Sr 0.935Pr 0.043)Pr 1.0O 3 exhibits semiconducting behavior. The bulk (grain interior) conductivity at 36°C is 5.2 × 10 -5 S cm -1 with an activation energy for charge transport of 0.26 eV.

Original languageEnglish (US)
Pages (from-to)5146-5154
Number of pages9
JournalChemistry of Materials
Volume17
Issue number20
DOIs
StatePublished - Oct 4 2005

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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