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arXiv · 2607.16399

Eddy currents and current reversal in curved magnetic thin-film Josephson junctions

Einar Skoglund·Maxim A. Tjøtta·Sol H. Jacobsen
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Abstract

Real-space geometric curvature in magnetic thin films introduces a controllable mechanism for tailoring the pathways of superconducting steady-state Josephson currents via the proximity effect. We present a generalized Green's function method for calculating diffusive transport in arbitrarily curved surfaces, and show how the competing mechanisms of curvature and distance regulate conversion between different superconducting pairings in a proximity-coupled ferromagnet. We show how this dictates the distribution of current density, with the possibility of curvature-controlled current density manipulation, induced eddy currents and current reversal.

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Einar Skoglund, Maxim A. Tjøtta, Sol H. Jacobsen. 2026-07-17. Eddy currents and current reversal in curved magnetic thin-film Josephson junctions. https://arxiv.org/abs/2607.16399

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