Harnessing curvature and torsion effects to control Néel domain wall dynamics
Abstract The geometry of a magnetic body is fundamental when considering applications based on domain wall (DW) propagation in nanometric systems. In this framework, helical systems allow the exploration of new and interesting phenomena. Through micromagnetic simulations and analytical calculations, we study the propagation of Néel DWs under the action of a spin-polarized current hosted in a helix-shaped nanowire (NW) with constant curvature and torsion and an uniaxial anisotropy pointing locally perpendicularly to the NW. Our results show that for a Néel DW propagating in a twisted NW, the effect of torsion (curvature) is equivalent to curvature (torsion) effects on the propagation of a transverse DW in an equivalent system.
Authors
- Vagson L. Carvalho‐Santos (ORCID: https://orcid.org/0000-0002-2759-2152)
- G. H. R. Bittencourt (ORCID: https://orcid.org/0000-0002-0912-8444)
- Mario Castro (ORCID: https://orcid.org/0000-0002-6956-8564)
- S. Allende (ORCID: https://orcid.org/0000-0002-6138-6862)
- David Gálvez-Poblete (ORCID: https://orcid.org/0009-0005-3993-0170)
- Álvaro S. Núñez (ORCID: https://orcid.org/0000-0002-6804-9703)
- D. Altbir (ORCID: https://orcid.org/0000-0002-2945-4909)
Institutions
- Universidad de Santiago de Chile (CL)
- Universidade Federal de Viçosa (BR)
- Instituto Federal de Educação, Ciência e Tecnologia de Santa Catarina (BR)
- University of Chile (CL)
- Universidad Diego Portales (CL)
Publication Details
- Journal
- Nano Futures
- Published
- 2025-04-09
- DOI
- https://doi.org/10.1088/2399-1984/adcb0b
- Citations
- 1
- Primary Topic
- Medieval European Literature and History
- Type
- article
- Field-Weighted Citation Impact
- 10.42
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado de Minas Gerais
- Fondo Nacional de Desarrollo Científico y Tecnológico