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Title: Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature

Abstract

Epitaxial PrBaCo2O5+δ (PBCO, 0 ≤ δ ≤ 1) thin films were deposited by pulsed laser deposition. The structural and electrical properties of the films were characterized at high temperatures in reduced environments. X-ray diffraction scans at high temperature in reduced environment show potential structural transitions of PBCO as evidenced by both a large (Δl = 0.335 nm) expansion of the out-plane (c-axis) lattice, due to thermal and chemical expansion, and a step in the expansion of the c-axis lattice parameter. These transitions indicate the presence of oxygen vacancy ordering as the oxygen content in the films is reduced. Resistivity measurements under the same environments also show evidence of sharp transitions related with the structural transformations. In conclusion, this study helps the understanding of the structure-property relationship of PBCO at high temperature and provides important technological information to utilize these materials for solid oxide fuel cell at intermediate temperatures.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1633334
Alternate Identifier(s):
OSTI ID: 1471369
Report Number(s):
LA-UR-18-28581
Journal ID: ISSN 2352-8478; S2352847817301077; PII: S2352847817301077
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Published Article
Journal Name:
Journal of Materiomics
Additional Journal Information:
Journal Name: Journal of Materiomics Journal Volume: 4 Journal Issue: 1; Journal ID: ISSN 2352-8478
Publisher:
Elsevier
Country of Publication:
China
Language:
English
Subject:
36 MATERIALS SCIENCE; High temperature; Physical properties; Complex oxide; Oxygen vacancy; Lattice structures

Citation Formats

Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, and Jia, Quanxi. Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature. China: N. p., 2018. Web. doi:10.1016/j.jmat.2017.12.003.
Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, & Jia, Quanxi. Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature. China. doi:10.1016/j.jmat.2017.12.003.
Mace, Brennan, Harrell, Zach, Xu, Xing, Chen, Chonglin, Enriquez, Erik, Chen, Aiping, and Jia, Quanxi. Thu . "Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature". China. doi:10.1016/j.jmat.2017.12.003.
@article{osti_1633334,
title = {Correlation of structural and electrical properties of PrBaCo2O5+δ thin films at high temperature},
author = {Mace, Brennan and Harrell, Zach and Xu, Xing and Chen, Chonglin and Enriquez, Erik and Chen, Aiping and Jia, Quanxi},
abstractNote = {Epitaxial PrBaCo2O5+δ (PBCO, 0 ≤ δ ≤ 1) thin films were deposited by pulsed laser deposition. The structural and electrical properties of the films were characterized at high temperatures in reduced environments. X-ray diffraction scans at high temperature in reduced environment show potential structural transitions of PBCO as evidenced by both a large (Δl = 0.335 nm) expansion of the out-plane (c-axis) lattice, due to thermal and chemical expansion, and a step in the expansion of the c-axis lattice parameter. These transitions indicate the presence of oxygen vacancy ordering as the oxygen content in the films is reduced. Resistivity measurements under the same environments also show evidence of sharp transitions related with the structural transformations. In conclusion, this study helps the understanding of the structure-property relationship of PBCO at high temperature and provides important technological information to utilize these materials for solid oxide fuel cell at intermediate temperatures.},
doi = {10.1016/j.jmat.2017.12.003},
journal = {Journal of Materiomics},
number = 1,
volume = 4,
place = {China},
year = {2018},
month = {3}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1016/j.jmat.2017.12.003

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Cited by: 3 works
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