Abstract
In this paper, the results of calculations of the temperature dependences of the critical current density and critical magnetic field of thin inhomogeneous superconducting films are presented. The comparison of these results with the results of calculations for homogeneous films shows that in both cases the critical magnetic field decreases according to the root law and the critical current density changes according to the power law with an exponent of degree 3/2 when approaching the critical temperature. Quantitatively, the critical current density of inhomogeneous films in the absence of external magnetic field is lower than the same parameter of homogeneous films. In turn, the critical magnetic field of inhomogeneous films is significantly larger than that of homogeneous films.
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The study was carried out within the State Assignment of the Ministry of Science and Higher Education of the Russian Federation, project no. 0023-2019-0005 “Physics of High-Temperature Superconductors and New Quantum Materials.”
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Translated by N. Semenova
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Bezotosnyi, P.I., Dmitrieva, K.A. Temperature Dependences of Critical Parameters of Inhomogeneous Superconducting Films. Phys. Solid State 63, 1131–1135 (2021). https://doi.org/10.1134/S1063783421080047
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DOI: https://doi.org/10.1134/S1063783421080047