Properties of tunnel Josephson junctions with a ferromagnetic interlayer

Details Properties of tunnel Josephson junctions with a ferromagnetic interlayer Properties of tunnel Josephson junctions with a ferromagnetic interlayer

2007-11-02

arxiv.org/abs/0711.0365v2

Phys. Rev. B 77, 134507 (2008)

Physics

Condensed Matter

Superconductivity

9 pages, 8 figures, to be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.77.134507

We investigate superconductor/insulator/ferromagnet/superconductor (SIFS) tunnel Josephson junctions in the dirty limit, using the quasiclassical theory. We formulate a quantitative model describing the oscillations of critical current as a function of thickness of the ferromagnetic layer and use this model to fit recent experimental data. We also calculate quantitatively the density of states (DOS) in this type of junctions and compare DOS oscillations with those of the critical current.

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