Thouless energy in Josephson SN-N-NS bridges

S.V. Bakurskiy ^{1, 2}

V.I. Ruzhickiy ^{1, 2}

Alexey Neilo ¹

Nikolay V. Klenov ^{1, 3}

Igor I. Soloviev ^{1, 2}

Andrey G. Shishkin ^{2, 4}

Anna Elistratova ^{2, 4}

V. S. Stolyarov ^{2, 4}

Mikhail Yu. Kupriyanov ¹

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Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow 119991, Russia |

Dukhov All-Russia Research Institute of Automatics, Moscow 101000, Russia |

Faculty of Physics, Lomonosov Moscow State University, Moscow 119992, Russia |

⁴

Center for Advanced Mesoscience and Nanotechnology, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia |

Publication date: 2024-07-27

Treatise

Journal: Mesoscience and Nanotechnology

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ISSN: 30346622

Temporary fake DOI: 10.0000/jmsn23

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Abstract

We have studied the Thouless energy in Josephson superconductor – normal metal – superconductor (SN-N-NS) bridges analytically and numerically, considering the influence of the sub-electrode regions. We have discovered a significant suppression of the Thouless energy with increasing interfacial resistance, consistent 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.