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arXiv · 1210.3470

Magnetic moment manipulation by triplet Josephson current

N. G. Pugach·A. I. Buzdin
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Abstract

The induced magnetic moment, provided by the bands electrons, is calculated in a variety of Josephson junctions with multilayered ferromagnetic (F) weak link. The noncollinear magnetization of the F layers provides the conditions necessary to generate triplet superconducting correlations. It leads to the long-range induced magnetic moment, emerging in the superconducting (S) layers. It is shown to be dependent on the Josephson phase. By tuning the Josephson current, one may control the long-range induced magnetic moment. Alternatively, applying the voltage we can generate an oscillatory magnetic moment. The detection of such a spin effect may serve as independent evidence of the triplet superconductivity. The proposed mechanism seems to be attractive for superconducting spintronic devices with low dissipation.

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N. G. Pugach, A. I. Buzdin. 2012-10-12. Magnetic moment manipulation by triplet Josephson current. https://doi.org/10.1063/1.4769900

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