Proximity-induced superconductivity in platinum metals

Details Proximity-induced superconductivity in platinum metals Proximity-induced superconductivity in platinum metals

2003-08-26

arxiv.org/abs/cond-mat/0308528v1

Phys. Rev. B 68, 132502 (2003)

Physics

Condensed Matter

Superconductivity

4 pages, 4 figures, to be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.68.132502

The diamagnetism of platinum metals (N: Rh, Pt, Pd), which is induced by the proximity effect of a superconductor (S: Nb), has been investigated for N-S double layers. Notwithstanding the strong spin fluctuation in platinum metals, the screening distance \rho in N increases with a decrease in temperature and reaches a value which is expected in comparison with \rho in Cu. When magnetic impurities are included in N, the proximity effect is drastically suppressed and the paramagnetism due to a giant moment is observed.

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