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Supercurrent Quantization in Narrow Channel SNS Junctions | | Nikolai M. Chtchelkatchev
; Gordey B. Lesovik
; Gianni Blatter
; | | Date: |
29 Jul 1999 | | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall | | Affiliation: | ETH Zurich | | Abstract: | We determine the quasi-particle excitation spectrum in the normal region of a narrow ballistic superconductor--normal-metal--superconductor (SNS) Josephson contact. Increasing the effective chemical potential in the contact converts the electronic levels into Andreev-levels carrying supercurrent. The opening of these superchannels leads to a supercurrent quantization which exhibits a non-universal behavior in general and we discuss its dependence on the junction parameters. | | Source: | arXiv, cond-mat/9907460 | | Services: | Forum | Review | PDF | Favorites | |
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