Long-range spin-polarized Josephson effect in ballistic S/F/S junctions with precessing magnetization
Mesoscale and Nanoscale Physics
2026-04-17 v1 Superconductivity
Abstract
We present a theory of ballistic N/F/S and S/F/S junctions with a uniformly precessing magnetization, which generates long-range equal-spin superconducting correlations [Takahashi et al., Phys. Rev. Lett. 99, 057003 (2007), Houzet, Phys. Rev. Lett. 101, 057009 (2008)]. The non-equilibrium distribution of Andreev bound states leads to a strongly non-sinusoidal current-phase relationship for large precession angles. We derive detailed results for ballistic junctions involving partially and fully polarized ferromagnets. In the fully polarized half-metal limit, the magnetization precession switches the junction from an "off" state with vanishing subgap current to an "on" state with finite Andreev conductance and finite Josephson current.
Cite
@article{arxiv.2604.14390,
title = {Long-range spin-polarized Josephson effect in ballistic S/F/S junctions with precessing magnetization},
author = {E. S. Andriyakhina and M. Mansouri and M. Breitkreiz and P. W. Brouwer},
journal= {arXiv preprint arXiv:2604.14390},
year = {2026}
}