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Information × Registration Number 0223U005078, 0123U103148 , R & D reports Title Hybrid superconducting devices for neuromorphic applications popup.stage_title Head Zhytlukhina Olena S., Кандидат фізико-математичних наук Registration Date 14-12-2023 Organization Galkin Donetsk Institute of Physics and Technology of the National Academy of Sciences of Ukraine popup.description2  The object of the research. Nanoscale films of transparent superconductors and superconductors with an abnormally high Ginzburg-Landau parameter. The subject of the research. Fabrication of ultrathin superconducting films for further neuromorphic applications, measurement of resistive characteristics and theoretical interpretation of the obtained data. The purpose of the research. Fabrication and study of hybrid spintronic/superconducting devices for neuromorphic computing and engineering. Research methods. Measurements of resistive characteristics by the modified van der Pauw method, analysis of the charge current in heterogeneous superconducting films using the theory of charge scattering in mesoscopic structures. The main results of the work. An overview of existing cryogenic neuromorphic hardware is given with their key indicators which are compared, the advantages and problems faced by modern technological platforms for neuromorphic systems are outlined. Using the modified van der Pauw method, a new approach to obtaining data on the non-uniform transition of two-dimensional films to the superconducting state is proposed. This technique was applied to doped films of indium-tin oxide exhibiting conductive properties and transparency to visible light. The technological parameters that allow obtaining corresponding homogeneous samples with a critical superconducting transition temperature of about 5 K have been identified. The possibility of realizing a three-dimensional state from the point of view of the superconducting order parameter and the two-dimensional spatial distribution of the supercurrent in a superconducting niobium nitride film has been demonstrated. It is shown theoretically that the ratio between two characteristic lengths of a superconductor - the coherence length and the London penetration depth - determines the angular and temperature dependence of the upper critical field. The obtained results make it possible to significantly increase the i Product Description popup.authors Belogolovskii Mikhail Bolyasova Olga Dmytrenko Viktoriia popup.nrat_date 2023-12-14 Close