Physics – Condensed Matter – Superconductivity
Scientific paper
1999-01-12
Phys. Rev. Lett. 82, 3336 (1999).
Physics
Condensed Matter
Superconductivity
4 pages, 2 ps-figures
Scientific paper
10.1103/PhysRevLett.82.3336
We study the proximity coherence in a mesoscopic normal-metal film (N) in contact with a superconductor (S). Accounting for a repulsive interaction between the electrons in the normal metal, we find an enhanced local density of states close to the NS interface. The sharp peak in the density is pinned to the Fermi energy and leads to spontaneous paramagnetic interface currents. The induced orbital magnetic moments exhibit the characteristic features of paramagnetic reentrance observed in normal-metal coated superconducting cylinders [Phys. Rev. Lett. 65, 1514 (1990)].
Belzig Wolfgang
Blatter Gianni
Fauchere Alban L.
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