Thouless energy in Josephson SN-N-NS bridges

2024/08/03 by S. V. Bakurskiy, Bakurskiy, S. V., V. I. Ruzhickiy +15 · 3 citations
Engineering · Materials Science · #FOS: Physical sciences #Fuel Cells and Related Materials #Nuclear Materials and Properties #Power Transformer Diagnostics and Insulation #Superconductivity (cond-mat.supr-con)

paper · pdf · doi:10.48550/arxiv.2408.01717

openalex publication_date 2024/08/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have studied the Thouless energy in Josephson superconductor-normal metal-superconductor (SN-N-NS) bridges analytically and numerically, taking into account the influence of the sub-electrode regions. We have found a significant suppression of the Thouless energy with increasing interfacial resistance, in agreement with experimental results. The analysis of the temperature dependence of the critical current in Josephson junctions in comparison with the expressions for the Thouless energy may allow the determination of the interface parameters of S and N-layers.

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