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<p>We examine the temperature dependencies of critical parameters and the diode effect in narrow superconducting bridges with disordered boundary layers. The Ginzburg-Landau theory is used to analyze how variations of the temperature and the external magnetic field affect the diode efficiency of the structure. In the considered temperature range (<InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(T \ge 0.8 T_C\)</EquationSource> </InlineEquation>), the diode efficiency changes slightly with temperature in low magnetic fields. Moreover, with increasing magnetic field, the diode efficiency increases with decreasing temperature and reaches a maximum of 12% at the largest of the considered magnetic fields. Additionally, further disordering of the surface layer, for example via atomic implantation with low-energy argon atoms, could allow the diode efficiency to be increased to 17%.</p>

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Superconducting Bridge with Disordered Boundary Layers: A Diode Effect and Temperature Dependencies of Critical Parameters

  • 期刊论文

  • 发表日期：

    2025年11月26日

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  • P. I. Bezotosnyi,
  • K. A. Dmitrieva

摘要

We examine the temperature dependencies of critical parameters and the diode effect in narrow superconducting bridges with disordered boundary layers. The Ginzburg-Landau theory is used to analyze how variations of the temperature and the external magnetic field affect the diode efficiency of the structure. In the considered temperature range ( \(T \ge 0.8 T_C\) ), the diode efficiency changes slightly with temperature in low magnetic fields. Moreover, with increasing magnetic field, the diode efficiency increases with decreasing temperature and reaches a maximum of 12% at the largest of the considered magnetic fields. Additionally, further disordering of the surface layer, for example via atomic implantation with low-energy argon atoms, could allow the diode efficiency to be increased to 17%.