Synthesis of vanadium sesquioxide films for the protection of high-temperature superconductor ribbons
Berezina O. Y.
1, Ignakhin V.S.
1, Putrolaynen V.V.
1, Sekirin I.V.
1, Spirin O.V.
1, Krasnoperov E.P.
21Petrozavodsk State University, Petrozavodsk, Russia
2National Research Center “Kurchatov Institute”, Moscow, Russia
Email: berezina@petrsu.ru, art101@petrsu.ru, vputr@petrsu.ru, sekirin@petrsu.ru, krasnoperov_ep@nrcki.ru
We obtained thin films (coatings) of V2O3 on conducting substrates for potential use as a protective layer on superconducting ribbons. The coatings were obtained by thermal oxidation of pure vanadium ribbons or by electrochemical deposition from a solution of sodium vanadate onto copper substrate. We have studied the dependence of the structure and phase composition of the obtained films as a funtion of the conditions of their synthesis. For films obtained by thermal oxidation, we obtained the temperature dependences of their resistance in the 77..300 K temperature range. Keywords: high temperature superconductor, Mott insulator, metal-insulator transition, vanadium sesquioxide.
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