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. 2
1Petrozavodsk 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

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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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