Synthesis, Single Crystal Growth, and Properties of Cobalt Deficient Double Perovskite EuBaCo2-xO6-δ (x = 0-0.1) / Telegin S.V., Zuev A.Y., Naumov S.V., Patrakov E.I., Tsvetkov D.S. // Journal of Chemistry. - 2017. - V. 2017, l. .

ISSN:
20909063
Type:
Article
Abstract:
The cobalt deficient double perovskites EuBaCo2-xO6-δ with x=0-0.1 were obtained both as powders and as single crystal. Formation of cobalt vacancies in their crystal lattice was shown to be accompanied by the formation of oxygen ones. Chemical lattice strain caused by this cooperative disordering of cobalt and oxygen sublattices was found to be isotropic contrary to that caused by the formation of oxygen vacancies only. Cobalt deficiency was also shown to lead to lowering overall conductivity and Seebeck coefficient of EuBaCo2-xO6-δ double perovskites as a result of simultaneous decrease of charge carriers' concentration and their mobility as well as number of sites available for electrons and holes transfer. Strong anisotropy of the overall conductivity of the single crystal double perovskites EuBaCo2-xO6-δ was found and explained on the basis of preferential location of oxygen vacancies in the rare-earth-oxygen- (REO-) planes. © 2017 S. V. Telegin et al.
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DOI:
10.1155/2017/3057873
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https://www.scopus.com/inward/record.uri?eid=2-s2.0-85024490757&doi=10.1155%2f2017%2f3057873&partnerID=40&md5=85c68ad9aa85b0148a740e072c10d398
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Art. No. 3057873
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Affiliations Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation; Department of Physical and Inorganic Chemistry, Ural Federal University, Ekaterinburg, Russian Federation
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Correspondence Address Tsvetkov, D.S.; Department of Physical and Inorganic Chemistry, Ural Federal UniversityRussian Federation; email: dmitry.tsvetkov@urfu.ru
Publisher Hindawi Limited
CODEN JCOHD
Language of Original Document English
Abbreviated Source Title J. Chem.
Source Scopus