Co/Nb/Co low field superconducting spin switch

Details Co/Nb/Co low field superconducting spin switch Co/Nb/Co low field superconducting spin switch

2007-09-11

arxiv.org/abs/0709.1687v1

Physics

Condensed Matter

Superconductivity

8 pages, 4 figures, submitted APL

Scientific paper

We report experiments on a superconducting spin switch based on technologically relevant materials as elemental ferromagnetic Co and elemental superconducting Nb. The Co/Nb/Co structure exhibits inverse spin switch effect, can be operated at liquid helium temperature and can switch from superconductive to normal state in rather weak applied magnetic fields. Relevant critical currents as a function of temperature and magnetic field as well as preparation of superconductive or resistive state are addressed here.

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