Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers
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| Autores principales: | , , , , , , , , , , , , , , |
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| Formato: | Preprint |
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2024
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| author | Dohi, Takaaki Bhukta, Mona Kammerbauer, Fabian Bharadwaj, Venkata Krishna Zarzuela, Ricardo Sud, Aakanksha Syskaki, Maria-Andromachi Tran, Duc Minh Wintz, Sebastian Weigand, Markus Finizio, Simone Raabe, Jörg Frömter, Robert Sinova, Jairo Kläui, Mathias |
| author_facet | Dohi, Takaaki Bhukta, Mona Kammerbauer, Fabian Bharadwaj, Venkata Krishna Zarzuela, Ricardo Sud, Aakanksha Syskaki, Maria-Andromachi Tran, Duc Minh Wintz, Sebastian Weigand, Markus Finizio, Simone Raabe, Jörg Frömter, Robert Sinova, Jairo Kläui, Mathias |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_19698 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers Dohi, Takaaki Bhukta, Mona Kammerbauer, Fabian Bharadwaj, Venkata Krishna Zarzuela, Ricardo Sud, Aakanksha Syskaki, Maria-Andromachi Tran, Duc Minh Wintz, Sebastian Weigand, Markus Finizio, Simone Raabe, Jörg Frömter, Robert Sinova, Jairo Kläui, Mathias Mesoscale and Nanoscale Physics Materials Science 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. |
| title | Observation of a non-reciprocal skyrmion Hall effect of hybrid chiral skyrmion tubes in synthetic antiferromagnetic multilayers |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2411.19698 |