Publication: Current-induced critical state in NbN thin-film structures
Current-induced critical state in NbN thin-film structures
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Il’in, K., Siegel, M., Engel, A., Bartolf, H., Schilling, A., Semenov, A., & Hübers, H. W. (2008). Current-induced critical state in NbN thin-film structures. Journal of Low Temperature Physics, 151, 585–590. https://doi.org/10.1007/s10909-007-9690-5
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The temperature dependence of the critical current of NbN thin-film bridges was experimentally studied. At low temperatures we observed significant enhancement (up to two times at 4 K) of the critical current density over de-pinning value in the sub-micrometer wide bridges. This enhancement can be described by an increase of the edge barrier for penetration of magnetic vortices into narrow superconducting strips.
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Il’in, K., Siegel, M., Engel, A., Bartolf, H., Schilling, A., Semenov, A., & Hübers, H. W. (2008). Current-induced critical state in NbN thin-film structures. Journal of Low Temperature Physics, 151, 585–590. https://doi.org/10.1007/s10909-007-9690-5