Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers
A hybrid chiral skyrmion tube is a well-known example of a 3D topological spin texture, exhibiting an intriguing chirality transition along the thickness direction. This transition progresses from left-handed to right-handed Néel-type chirality, passing through a Bloch-type intermediate state. Such an exotic spin configuration potentially exhibits distinctly different dynamics from that of the common skyrmion tube that exhibits a homogeneous chirality; yet these dynamics have not been ascertained so far. Here, we reveal the distinct features of current-induced dynamics that result from the hybrid chiral skyrmion tube structure in synthetic antiferromagnetic (SyAFM) multilayers. Strikingly, the SyAFM hybrid chiral skyrmion tubes exhibit a non-reciprocal skyrmion Hall effect in the flow regime. The non-reciprocity can even be tuned by the degree of magnetic compensation in the SyAFM systems. Our theoretical modeling qualitatively corroborates that the non-reciprocity stems from the dynamic oscillation of skyrmion helicity during its current-induced motion. The findings highlight the critical role of the internal degrees of freedom of these complex skyrmion tubes for their current-induced dynamics.
Authors
- Jörg Raabe (ORCID: https://orcid.org/0000-0002-2071-6896)
- Jairo Sinova (ORCID: https://orcid.org/0000-0002-9490-2333)
- Fabian Kammerbauer (ORCID: https://orcid.org/0000-0002-5762-2762)
- Thibaud Denneulin (ORCID: https://orcid.org/0000-0001-7350-7943)
- A. Sud (ORCID: https://orcid.org/0000-0002-8189-694X)
- Mathias Kläui (ORCID: https://orcid.org/0000-0002-4848-2569)
- Robert Frömter (ORCID: https://orcid.org/0000-0002-3399-5628)
- V. Bharadwaj (ORCID: https://orcid.org/0009-0008-5469-5844)
- Ricardo Zarzuela (ORCID: https://orcid.org/0000-0003-1765-1697)
- Takaaki Dohi (ORCID: https://orcid.org/0000-0003-1628-0097)
- Minh Duc Tran (ORCID: https://orcid.org/0000-0001-6090-4675)
- Simone Finizio (ORCID: https://orcid.org/0000-0002-1792-0626)
- Sebastian Wintz (ORCID: https://orcid.org/0000-0001-6138-8078)
- Rafal E. Dunin–Borkowski (ORCID: https://orcid.org/0000-0001-8082-0647)
- Mona Bhukta (ORCID: https://orcid.org/0000-0001-7745-8560)
- Markus Weigand (ORCID: https://orcid.org/0000-0002-0325-2268)
- Maria‐Andromachi Syskaki (ORCID: https://orcid.org/0000-0003-2261-7653)
Institutions
- Singulus (Germany) (DE)
- Forschungszentrum Jülich (DE)
- Johannes Gutenberg University Mainz (DE)
- Tohoku University (JP)
- Norwegian University of Science and Technology (NO)
- Helmholtz-Zentrum Berlin für Materialien und Energie (DE)
- Ernst Ruska Centre (DE)
- Paul Scherrer Institute (CH)
- Spintronics Research Network of Japan (JP)
- Max Planck Institute for Intelligent Systems (DE)
- Swiss Light Source
Publication Details
- Journal
- Nature Communications
- Published
- 2025-09-26
- DOI
- https://doi.org/10.1038/s41467-025-63759-7
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- European Commission
- Deutsche Forschungsgemeinschaft
- Bundesministerium für Bildung und Forschung
- Ministerul Educaţiei Naţionale
- Norges Forskningsråd
- Helmholtz-Zentrum Berlin für Materialien und Energie
- HORIZON EUROPE Framework Programme
- Japan Society for the Promotion of Science
- H2020 Marie Skłodowska-Curie Actions