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Nonstoichiometry, Structure, and Electrical Properties of “SrPrO_3”

Thundathil, Mary A. and Jones, Camille Y. and Snyder, G. Jeffrey and Haile, Sossina M. (2005) Nonstoichiometry, Structure, and Electrical Properties of “SrPrO_3”. Chemistry of Materials, 17 (20). pp. 5146-5154. ISSN 0897-4756. https://resolver.caltech.edu/CaltechAUTHORS:20131125-162533441

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Abstract

The single-phase composition with the perovskite structure type in the Sr−Pr−O system has been identified as (Sr₀.₉₃₅Pr₀.₀₄₃□₀.₀₂₂)Pr₁.₀O₃ from neutron diffraction refinements, chemical analysis, and thermogravimetric analysis. The cation deficient oxide crystallizes in a GdFeO3-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. (Sr₀.₉₃₅Pr₀.₀₄₃)Pr₁.₀O₃ 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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http:/dx.doi.org/10.1021/cm050895kDOIArticle
http://pubs.acs.org/doi/abs/10.1021%2Fcm050895kPublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/cm050895kPublisherSupplemental material
ORCID:
AuthorORCID
Snyder, G. Jeffrey0000-0003-1414-8682
Haile, Sossina M.0000-0002-5293-6252
Alternate Title:Nonstoichiometry, Structure, and Electrical Properties of SrPrO3
Additional Information:Copyright © 2005 American Chemical Society. Received April 27, 2005. Revised Manuscript Received June 29, 2005. Publication Date (Web): August 31, 2005. CM050895K. This work was supported by DOE office of Energy Efficiency and Renewable Energy. The authors gratefully acknowledge the assistance of Dr. Tetsuya Uda with chemical analysis and for valuable discussions.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Subject Keywords:neutron-diffraction magnetic-properties crystal-structures barium cerate high-temperatures thin-films bapro3 perovskites proton baceo3
Issue or Number:20
Record Number:CaltechAUTHORS:20131125-162533441
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20131125-162533441
Official Citation:Nonstoichiometry, Structure, and Electrical Properties of “SrPrO3”. Mary A. Thundathil, Camille Y. Jones, G. Jeffrey Snyder, and Sossina M. Haile. Chemistry of Materials 2005 17 (20), 5146-5154.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:42729
Collection:CaltechAUTHORS
Deposited By: Jonathan Gross
Deposited On:27 Nov 2013 20:27
Last Modified:03 Oct 2019 06:01

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