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http://elar.urfu.ru/handle/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://elar.urfu.ru/handle/10995/118116 |
Access: | info:eu-repo/semantics/openAccess |
RSCI ID: | 46812336 |
SCOPUS ID: | 85107835269 |
WOS ID: | 000684543700028 |
PURE ID: | 22098655 |
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 ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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