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

Abstract

AMn3V4O12 (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 \(Im\bar 3\)Z = 2) is determined via X-ray analysis. If ions in the A sublattice are changed in the order Ca2+–Sm3+–Ce3+, the valence is redistributed from Ca2+Mn32+V44+O12 to Sm3+Mn32+V43.75+O12, and to Ce3+Mn32+V43.75+O12. The temperature dependences of the electrical resistivity are studied.

About the authors

N. I. Kadyrova

Institute of Solid State Chemistry, Ural Branch

Author for correspondence.
Email: kadyrova@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

Yu. G. Zaynulin

Institute of Solid State Chemistry, Ural Branch

Email: kadyrova@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

A. P. Tyutyunnik

Institute of Solid State Chemistry, Ural Branch

Email: kadyrova@ihim.uran.ru
Russian Federation, Yekaterinburg, 620990

N. V. Melnikova

Institute of Natural Sciences

Email: kadyrova@ihim.uran.ru
Russian Federation, Yekaterinburg, 620000

A. A. Mirzorakhimov

Institute of Natural Sciences

Email: kadyrova@ihim.uran.ru
Russian Federation, Yekaterinburg, 620000

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