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

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

doi:10.1021/cm050895k

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

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-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 _0.043□ _0.022)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 language	English (US)
Pages (from-to)	5146-5154
Number of pages	9
Journal	Chemistry of Materials
Volume	17
Issue number	20
DOIs	https://doi.org/10.1021/cm050895k
State	Published - Oct 4 2005

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Materials Chemistry

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@article{a60a27cb06144fb08b906ca19df5174c,

title = "Nonstoichiometry, structure, and electrical properties of {"}SrPrO 3{"}",

abstract = "The single-phase composition with the perovskite structure type in the Sr-Pr-O system has been identified as (Sr 0.935Pr 0.043□ 0.022)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) {\AA}, 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.",

author = "Thundathil, {Mary A.} and Jones, {Camille Y.} and {Jeffrey Snyder}, G. and Haile, {Sossina M.}",

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T1 - Nonstoichiometry, structure, and electrical properties of "SrPrO 3"

AU - Thundathil, Mary A.

AU - Jones, Camille Y.

AU - Jeffrey Snyder, G.

AU - Haile, Sossina M.

PY - 2005/10/4

Y1 - 2005/10/4

N2 - The single-phase composition with the perovskite structure type in the Sr-Pr-O system has been identified as (Sr 0.935Pr 0.043□ 0.022)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.

AB - The single-phase composition with the perovskite structure type in the Sr-Pr-O system has been identified as (Sr 0.935Pr 0.043□ 0.022)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.

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

Abstract

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