Giant Mutual Proximity Effects in Ferromagnetic/Superconducting Nanostructures

Details Giant Mutual Proximity Effects in Ferromagnetic/Superconducting Nanostructures Giant Mutual Proximity Effects in Ferromagnetic/Superconducting Nanostructures

1999-03-15

arxiv.org/abs/cond-mat/9903237v1

Physics

Condensed Matter

Superconductivity

7 pages in html format, 3 figures in ps format. Submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.83.3281

A strong mutual influence of superconductors (S) and ferromagnetic (F) conductors in hybrid F/S (Ni/Al) nanostructures is observed. The magnitude of a proximity-induced conductance on the F-side is more than two orders larger than that predicted by theory. Re-entrance of the superconductors to the normal state reciprocated by changes on the F-side has been found in low applied magnetic fields with new peaks in the differential resistance as an effect of the saturation magnetisation. An analysis has been developed providing a base for a numerical description of the system. PACS numbers: 74.50.+r, 74.80.Fp, 85.30St

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