Superconducting current in narrow proximity wires | Zendy

Frank K. Wilhelm | Zendy; Andrei D. Zaikin | Zendy; Gerd Schön | Zendy

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Superconducting current in narrow proximity wires

Author(s) -

Frank K. Wilhelm,

Andrei D. Zaikin,

Gerd Schön

Publication year - 1996

Publication title -

czechoslovak journal of physics

Language(s) - English

Resource type - Journals

eISSN - 1572-9486

pISSN - 0011-4626

DOI - 10.1007/bf02571189

Subject(s) - supercurrent , limit (mathematics) , scaling , physics , simple (philosophy) , superconductivity , current (fluid) , statistical physics , scaling limit , speculation , condensed matter physics , scaling law , critical current , theoretical physics , josephson effect , thermodynamics , mathematical analysis , mathematics , philosophy , geometry , macroeconomics , epistemology , economics

The critical supercurrent in proximty-wires shows a surprising temperature dependence in the experiment [1]. This observation has lead to speculation whether there are new effects involved and/or the usual criterion for the dirty limit is not valid for this type of systems. We propose a simple SNS-model for this system and show analytically, that this unexpected scaling is already contained in a conventional description of this model by quasiclassical Green's functions in the dirty limit. Based n further numerical calculations, excellent agreement with the experimental results is obtained.

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