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Depairing current and diode effect in a bridge with disordered boundary layers
Russian version
Bezotosnyi P. I. 1, Dmitrieva K. A. 1
1Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia
Email: bezpi@lebedev.ru
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The superconducting state of narrow bridges with disordered normal metal layers at the boundaries is considered. The critical current and magnetic field of these structures are calculated within the framework of the Ginzburg-Landau theory. The diode effect in such bridges is studied. The estimates of the depairing current made within the framework of the presented model are in quantitative agreement with the experimental data for Nb and NbN bridges. It is shown that the average diode efficiency in the considered case can reach 18 %. Keywords: superconducting bridges, critical current, Ginzburg-Landau theory, diode effect.
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