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MA: Fachverband Magnetismus

MA 44: Focus Session: Curvilinear magnetism: Magnetics with nanoscale curved geometries (joint session MA/TT)

MA 44.3: Hauptvortrag

Donnerstag, 12. März 2026, 10:30–11:00, POT/0151

Curvilinear magnetism in superconducting spintronics — •Sol Jacobsen — Center for Quantum Spintronics, Norwegian University of Science and Technology NTNU, Trondheim, Norway

Replacing semiconductor-based computational components with superconducting elements can give an energy saving of two orders of magnitude. To harness this, we need precise control of the interaction between superconducting and magnetic components. Geometric curvature controls the superconducting transition by affecting spin relaxation and precession in superconductor-magnet heterostructures [1]. To functionalize this in devices, we can dynamically alter the curvature by inducing bending-strain. This can for example lead to electrically controlled superconducting spin-valves, current-reversal, and chirality-dependent ground states in triplet-SQUIDs [1-3]. In this presentation, I will discuss how real-space geometric curvature provides new pathways for manufacturing and controlling the interaction between superconductivity and magnetism in wires and thin films, and anticipate future developments in the field.

[1] Salamone et al, Phys. Rev. B 104 (2021) L060505; 105, (2022) 134511. [2] Salamone et al, Appl. Phys. Lett. 125 (2024) 062602. [3] Skarpeid et al, J.Phys.:Condens.Matter, 36 (2024) 235302.

Keywords: Superconductivity; Spintronics; Magnetism; Josephson junctions; Strain