Oscillations of the superconducting critical current in Nb-Cu-Ni-Cu-Nb junctions

Details Oscillations of the superconducting critical current in Nb-Cu-Ni-Cu-Nb junctions Oscillations of the superconducting critical current in Nb-Cu-Ni-Cu-Nb junctions

2002-03-20

arxiv.org/abs/cond-mat/0203408v1

Physics

Condensed Matter

Superconductivity

5 pages

Scientific paper

10.1103/PhysRevLett.89.187004

We report on experimental studies of superconductor-ferromagnet layered
structures. Strong oscillations of the critical supercurrent were observed with
the thickness variation of the ferromagnet. Using known microscopic parameters
of Ni, we found reasonable agreement between the period of oscillations and the
decay of the measured critical current, and theoretical calculations.

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