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Elementary excitations in the vicinity of a normal metal-superconducting metal contact

โœ Scribed by P.G. de Gennes; D. Saint-James

Publisher
Elsevier Science
Year
1963
Weight
151 KB
Volume
4
Category
Article
ISSN
0031-9163

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๐Ÿ“œ SIMILAR VOLUMES

Excess currents larger than the point co
Excess currents larger than the point contact limit in normal-metal/superconducting junctions
โœ Richard Riedel; Philip F. Bagwell ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 286 KB

In a point contact NS junction, perfect Andreev reflection occurs over a range of voltages equal to the superconducting energy gap, producing an excess current of I exc = (4/3)(2e / h). If the superconductor has a finite width, rather than the infinite width of the point contact, one cannot neglect