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0-pi transition in SFS junctions with strongly spin-dependent scattering

O. Kashuba·Ya. M. Blanter·Vladimir I. Fal'ko
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Abstract

We develop theory of proximity effect in a superconductor - GMR alloy - superconductor trilayers, which takes into account strong spin dependence of electron scattering of compositional disorder in a diluted ferromagnetic alloy. We show that in such a system the critical current oscillations as the function of the thickness of the ferromagnetic layer, with the period of $v_{F}/2I$, decay exponentially with the characteristic length of the order of the mean free path.

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O. Kashuba, Ya. M. Blanter, Vladimir I. Fal'ko. 2007-05-24. 0-pi transition in SFS junctions with strongly spin-dependent scattering. https://doi.org/10.1103/physrevb.75.132502

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