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arXiv · 2604.14390

Long-range spin-polarized Josephson effect in ballistic S/F/S junctions with precessing magnetization

E. S. Andriyakhina·M. Mansouri·M. Breitkreiz·P. W. Brouwer
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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.

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E. S. Andriyakhina, M. Mansouri, M. Breitkreiz, P. W. Brouwer. 2026-04-15. Long-range spin-polarized Josephson effect in ballistic S/F/S junctions with precessing magnetization. https://arxiv.org/abs/2604.14390

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