Synthesis and electrical properties of new perovskite-like AMn3V4O12 (A = Ca, Ce, and Sm) compounds

A Mn 3 V 4 O 12 ( A = Ca, Ce, and Sm) compounds with a perovskite structure are synthesized at high pressures and temperatures. The crystalline structure of these compounds (space group Z = 2) is determined via X-ray analysis. If ions in the A sublattice are changed in the order Ca 2+ –Sm 3+ –Ce 3+...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2016-06, Vol.80 (6), p.620-623
Main Authors: Kadyrova, N. I., Zaynulin, Yu. G., Tyutyunnik, A. P., Melnikova, N. V., Mirzorakhimov, A. A.
Format: Article
Language:English
Subjects:
Disorder
Hadrons
Heavy Ions
Nuclear Physics
Physics
Physics and Astronomy
Proceedings of the Interdisciplinary Symposium “Ordering in Minerals and Alloys” OMA-18 and Proceedings of the International Interdisciplinary Symposium “Order
Properties of Oxides” ODPO-18
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Summary:A Mn 3 V 4 O 12 ( A = Ca, Ce, and Sm) compounds with a perovskite structure are synthesized at high pressures and temperatures. The crystalline structure of these compounds (space group Z = 2) is determined via X-ray analysis. If ions in the A sublattice are changed in the order Ca 2+ –Sm 3+ –Ce 3+ , the valence is redistributed from Ca 2+ Mn 3 2+ V 4 4+ O 12 to Sm 3+ Mn 3 2+ V 4 3.75+ O 12 , and to Ce 3+ Mn 3 2+ V 4 3.75+ O 12 . The temperature dependences of the electrical resistivity are studied.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873816060149