S. V. Briakunov
Institute of Solid State Chemistry of the Ural Branch, Russian Academy of Sciences; Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation

Sergey V. Briakunov - Engineer of the Laboratory of nonstoichio-metric compounds of Institute of Solid State Chemistry of Ural Branch of the Russian Academy of Sciences; Senior Lecturer of Electronic Engineering Department of Ural Federal University.

91 Pervomaiskaya Str., Ekaterinburg 620990; 19 Mira Str., Ekaterinburg 620002

A. S. Kurlov
Institute of Solid State Chemistry of the Ural Branch, Russian Academy of Sciences
Russian Federation

Aleksey S. Kurlov - Cand. Sci. (Phys.-Math.), Head of the Laboratory of nonstoichiometric compounds of Institute of Solid State Chemistry.

91 Pervomaiskaya Str., Ekaterinburg 620990