Andreev reflection and the semiclassical Bogoliubov-de Gennes Hamiltonian: Resonant states Reportar como inadecuado




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1 CPT - Centre de Physique Théorique - UMR 6207 2 Département de mathématiques Tunis 3 CPT - Centre de Physique Théorique - UMR 7332

Abstract : We present a semi-classical analysis of the opening of superchannels in gated mesoscopic SNS junctions. For perfect junctions i.e. hard-wall potential, this was considered by ChLeBl in the framework of scattering matrices. Here we allow for imperfections in the junction, so that the complex order parameter continues as a smooth function, which is a constant in the superconducting banks, and vanishes rapidly inside the lead. We obtain quantization rules for resonant Andreev states near energy E close to the Fermi level, including the determination of the resonance width.





Autor: Amira Bensouissi - Abdelwahe Ifa - Michel Rouleux -

Fuente: https://hal.archives-ouvertes.fr/



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