Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions

Using solid-state reactions method, the solid solutions of layered oxygen-deficient perovskites NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) were prepared; their crystal structure, thermal stability, thermal expansion, electrical conductivity and thermopower were studied. It was found that NdBa1–xSr...

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Autores principales:	A. I. Klyndyuk, Ya. Yu. Zhuravleva, N. N. Gundilovich
Formato:	article
Lenguaje:	EN RU
Publicado:	Uralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina 2021
Materias:	layered perovskites thermal stability thermal expansion electrical conductivity thermo-emf Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/5d67ca403f684c66a7a289a31c5343d3
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spelling	oai:doaj.org-article:5d67ca403f684c66a7a289a31c5343d32021-12-01T05:53:11ZCrystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions2411-141410.15826/chimtech.2021.8.3.01https://doaj.org/article/5d67ca403f684c66a7a289a31c5343d32021-07-01T00:00:00Zhttps://journals.urfu.ru/index.php/chimtech/article/view/5133https://doaj.org/toc/2411-1414Using solid-state reactions method, the solid solutions of layered oxygen-deficient perovskites NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) were prepared; their crystal structure, thermal stability, thermal expansion, electrical conductivity and thermopower were studied. It was found that NdBa1–xSrxFeCo0.5Cu0.5O5+δ phases crystallize in tetragonal syngony (space group P4/mmm) and are p-type semiconductors, whose conductivity character at high temperatures changed to the metallic one due to evolution from the samples of so-called weakly-bonded oxygen. Partial substitution of barium by strontium in NdBaFeCo0.5Cu0.5O5+δ leads to the small decreasing of unit cell parameters, thermal stability and thermopower of NdBa1–xSrxFeCo0.5Cu0.5O5+δ solid solutions, increasing of their electrical conductivity values and slightly affects their linear thermal expansion coefficient and activation energy of electrical transport values.A. I. KlyndyukYa. Yu. ZhuravlevaN. N. GundilovichUralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina articlelayered perovskitesthermal stabilitythermal expansionelectrical conductivitythermo-emfChemistryQD1-999ENRUChimica Techno Acta, Vol 8, Iss 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU
topic	layered perovskites thermal stability thermal expansion electrical conductivity thermo-emf Chemistry QD1-999
spellingShingle	layered perovskites thermal stability thermal expansion electrical conductivity thermo-emf Chemistry QD1-999 A. I. Klyndyuk Ya. Yu. Zhuravleva N. N. Gundilovich Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
description	Using solid-state reactions method, the solid solutions of layered oxygen-deficient perovskites NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) were prepared; their crystal structure, thermal stability, thermal expansion, electrical conductivity and thermopower were studied. It was found that NdBa1–xSrxFeCo0.5Cu0.5O5+δ phases crystallize in tetragonal syngony (space group P4/mmm) and are p-type semiconductors, whose conductivity character at high temperatures changed to the metallic one due to evolution from the samples of so-called weakly-bonded oxygen. Partial substitution of barium by strontium in NdBaFeCo0.5Cu0.5O5+δ leads to the small decreasing of unit cell parameters, thermal stability and thermopower of NdBa1–xSrxFeCo0.5Cu0.5O5+δ solid solutions, increasing of their electrical conductivity values and slightly affects their linear thermal expansion coefficient and activation energy of electrical transport values.
format	article
author	A. I. Klyndyuk Ya. Yu. Zhuravleva N. N. Gundilovich
author_facet	A. I. Klyndyuk Ya. Yu. Zhuravleva N. N. Gundilovich
author_sort	A. I. Klyndyuk
title	Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
title_short	Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
title_full	Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
title_fullStr	Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
title_full_unstemmed	Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions
title_sort	crystal structure, thermal and electrotransport properties of ndba1–xsrxfeco0.5cu0.5o5+δ (0.02 ≤ x ≤ 0.20) solid solutions
publisher	Uralʹskij federalʹnyj universitet imeni pervogo Prezidenta Rossii B.N. Elʹcina
publishDate	2021
url	https://doaj.org/article/5d67ca403f684c66a7a289a31c5343d3
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Crystal structure, thermal and electrotransport properties of NdBa1–xSrxFeCo0.5Cu0.5O5+δ (0.02 ≤ x ≤ 0.20) solid solutions

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