Interface probe for antiferromagnets using geometric curvature
arXiv:2311.12116 · doi:10.1103/PhysRevB.109.094508
Abstract
We propose that geometric curvature and torsion may be used to probe the quality of an uncompensated antiferromagnetic interface, using the proximity effect. We study a helix of antiferromagnetic wire coupled to a conventional superconductor, and show that a density of states measurement can give information about the quality of an uncompensated interface, crucial for many recently predicted antiferromagnetic proximity effects. Furthermore, we show that geometric curvature alone can result in long-ranged superconducting triplet correlations in the antiferromagnet, and we discuss the impact curvature and torsion can have on the future development of superconducting spintronic devices.
9 pages, 5 figures
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- Bending-strain effects in conventional superconductors and superconducting junctions
- Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures
- Electrical control of superconducting spin valves using ferromagnetic helices
- Triplet correlations in superconductor/antiferromagnet heterostructures: dependence on type of antiferromagnetic ordering
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