RT Journal Article T1 Realization of complex‐shaped magnetic nanotubes with 3D printing and electrodeposition A1 Fernández González, Claudia A1 Morales Fernández, Pamela A1 Turnbull, Luke Alexander A1 Abert, Claas A1 Suess, Dieter A1 Foerster, Michael A1 Niño, Miguel Á. A1 Nita, Pawel A1 Mandziak, Anna A1 Finizio, Simone A1 Bagués, Nuria A1 Pereiro, Eva A1 Fernández Pacheco, Amalio A1 Pérez García, Lucas A1 Ruiz Gómez, Sandra A1 Donnelly, Claire AB The expansion of nanomagnetism to the third dimension leads to phenomena such as curvature-induced magnetochirality and anisotropy, which can significantly influence the behavior of magnetic textures. One of the most promising systems is the magnetic nanotube – where intrinsic curvature effects are present. However, studies of magnetic nanotubes remain limited to straight systems, and little is known about the influence of 3D geometries. In this work, three dimensional (3D) complex-shaped nanotubes are fabricated by combining nanoprinting with the conformal deposition of magnetic films. Specifically, 3D conductive non-magnetic tungsten scaffolds are fabricated using focused electron beam induced deposition and subsequently coated with a nickel magnetic shell, resulting in complex-shaped magnetic nanotubes whose geometry can be controlled by tuning the electron-beam parameters and electrodeposition conditions. Performing X-ray microscopy revealed that nanotubes of various geometries host a vortex-like azimuthal state, and that the energy landscape of the magnetic configuration can be tailored geometrically. Specifically, the pinning of magnetic domain walls at curved vertices is observed experimentally and confirmed with micromagnetic simulations, offering geometrical control of magnetic configurations in nanotube architectures. This approach provides a new pathway to fabricate and study complex 3D core-shell magnetic structures, facilitating experimental investigations of their fundamental properties, key for the next-generation of spintronic devices. PB Wiley SN 1616-301X YR 2025 FD 2025-09-22 LK https://hdl.handle.net/20.500.14352/133697 UL https://hdl.handle.net/20.500.14352/133697 LA eng NO C. Fernández‐González, P. Morales‐Fernández, L. A. Turnbull, C. Abert, D. Suess, M. Foerster, M. Á. Niño, P. Nita, A. Mandziak, S. Finizio, N. Bagués, E. Pereiro, A. Fernández‐Pacheco, L. Pérez, S. Ruiz‐Gómez, C. Donnelly, Adv Funct Materials 2026, 36, e15722. NO © 2025 The Author(s).ID-4081/SOL/2021/2MSCA-101061612REP-101061612-1 NO Ministerio de Ciencia e Innovación (España) NO Agencia Estatal de Investigación (España) NO European Commission NO Comunidad de Madrid NO Paul Scherrer Institut NO Ministry of Science and Higher Education (Poland) NO Alexander von Humboldt Foundation NO Max Planck Society NO Generalitat de Catalunya DS Docta Complutense RD 4 mar 2026