Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/118116
Title: Effect of cobalt content on the properties of quintuple perovskites Sm2Ba3Fe5-xCoxO15-δ
Authors: Golovachev, I. B.
Mychinko, M. Y.
Volkova, N. E.
Gavrilova, L. Y.
Raveau, B.
Maignan, A.
Cherepanov, V. A.
Issue Date: 2021
Publisher: Academic Press Inc.
Citation: Effect of cobalt content on the properties of quintuple perovskites Sm2Ba3Fe5-xCoxO15-δ / I. B. Golovachev, M. Y. Mychinko, N. E. Volkova et al. // Journal of Solid State Chemistry. — 2021. — Vol. 301. — 122324.
Abstract: Quintuple perovskites Sm2Ba3Fe5-xCoxO15-δ (x ​= ​0.5, 1.0 and 1.5) have been prepared by glycerin-nitrate technique in air. The phase purity was confirmed by XRD. Partial substitution of Co for Fe decreases the oxygen content and thus the mean oxidation state of 3d-metals. It also slightly decreases the thermal expansion coefficient of oxides. Positive value of the Seebeck coefficient confirmed p-type conductivity, though the thermopower decreases as the Co content increases. The temperature dependence of electrical conductivity reveals a maximum at 550–750°С. © 2021 Elsevier Inc.
Keywords: ELECTRICAL PROPERTIES
MULTILAYER STRUCTURE
SEMICONDUCTORS
THERMAL PROPERTIES
BARIUM COMPOUNDS
IRON COMPOUNDS
PEROVSKITE
SAMARIUM COMPOUNDS
TEMPERATURE DISTRIBUTION
THERMAL EXPANSION
COBALT CONTENT
ELECTRICAL CONDUCTIVITY
OXIDATION STATE
P TYPE CONDUCTIVITY
PARTIAL SUBSTITUTION
POSITIVE VALUE
TEMPERATURE DEPENDENCE
THERMAL EXPANSION COEFFICIENTS
COBALT
URI: http://hdl.handle.net/10995/118116
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85107835269
ISSN: 224596
DOI: 10.1016/j.jssc.2021.122324
metadata.dc.description.sponsorship: Russian Foundation for Basic Research, РФФИ: 18-33-00822; Ministry of Education and Science of the Russian Federation, Minobrnauka: 075-15-2019-1924
The work was financially supported in parts from the Ministry of Science and Higher Education of Russian Federation [Agreement No. 075-15-2019-1924 ] and Russian Foundation for Basic Research [project No 18-33-00822 ].
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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