Static and Dynamics of Twisted Skyrmion Tubes in Frustrated Magnets
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866917109298102272 |
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| author | Saji, Carlos Saavedra, Eduardo Carvalho-Santos, Vagson L. Nunez, Alvaro S. Troncoso, Roberto E. |
| author_facet | Saji, Carlos Saavedra, Eduardo Carvalho-Santos, Vagson L. Nunez, Alvaro S. Troncoso, Roberto E. |
| contents | Stable three-dimensional topological skyrmion structures in frustrated magnets are investigated. The texture exhibits a helicoid pattern along the vertical direction, described by a position-dependent helicity, which interpolates between Neel- and hedgehog-like two-dimensional skyrmions, characterized by the Hopf index, and is referred to as "twisted skyrmion tubes" (TSkTs). The stability and topology of TSkTs are achieved by competing next-nearest-neighbor exchange interactions, the thickness of the magnet, and the applied magnetic field. The dynamical behavior of a twisted structure in frustrated magnets is determined. Specifically, we derive that the helicity dynamics of the TSkT can be driven by an electric current resulting from spin-orbit torque interaction. Furthermore, we address the study of the electronic scattering problem using a spin-orbit-torque-driven TSKT, which offers promising applications for low-power storage nanodevices and nanobatteries with enhanced control. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_20570 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Static and Dynamics of Twisted Skyrmion Tubes in Frustrated Magnets Saji, Carlos Saavedra, Eduardo Carvalho-Santos, Vagson L. Nunez, Alvaro S. Troncoso, Roberto E. Mesoscale and Nanoscale Physics Strongly Correlated Electrons Stable three-dimensional topological skyrmion structures in frustrated magnets are investigated. The texture exhibits a helicoid pattern along the vertical direction, described by a position-dependent helicity, which interpolates between Neel- and hedgehog-like two-dimensional skyrmions, characterized by the Hopf index, and is referred to as "twisted skyrmion tubes" (TSkTs). The stability and topology of TSkTs are achieved by competing next-nearest-neighbor exchange interactions, the thickness of the magnet, and the applied magnetic field. The dynamical behavior of a twisted structure in frustrated magnets is determined. Specifically, we derive that the helicity dynamics of the TSkT can be driven by an electric current resulting from spin-orbit torque interaction. Furthermore, we address the study of the electronic scattering problem using a spin-orbit-torque-driven TSKT, which offers promising applications for low-power storage nanodevices and nanobatteries with enhanced control. |
| title | Static and Dynamics of Twisted Skyrmion Tubes in Frustrated Magnets |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2505.20570 |