Magnetic moment manipulation by triplet Josephson current
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.
Cite
@article{arxiv.1210.3470,
title = {Magnetic moment manipulation by triplet Josephson current},
author = {N. G. Pugach and A. I. Buzdin},
journal= {arXiv preprint arXiv:1210.3470},
year = {2015}
}
Comments
5 pages, 2 figures, submitted to Applied Physics Letters