Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets
The study of skyrmion/antiskyrmion motion in magnetic materials is very important in particular for the spintronics applications. In this work, we study the dynamics of isolated skyrmions and antiskyrmions in frustrated magnets driven by magnetic field gradient, using the Landau–Lifshitz–Gilbert sim...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aac24c |
| _version_ | 1797750717728948224 |
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| author | J J Liang J H Yu J Chen M H Qin M Zeng X B Lu X S Gao J–M Liu |
| author_facet | J J Liang J H Yu J Chen M H Qin M Zeng X B Lu X S Gao J–M Liu |
| author_sort | J J Liang |
| collection | DOAJ |
| description | The study of skyrmion/antiskyrmion motion in magnetic materials is very important in particular for the spintronics applications. In this work, we study the dynamics of isolated skyrmions and antiskyrmions in frustrated magnets driven by magnetic field gradient, using the Landau–Lifshitz–Gilbert simulations on the frustrated classical Heisenberg model on the triangular lattice. A Hall-like motion induced by the gradient is revealed in bulk system, similar to that in the well-studied chiral magnets. More interestingly, our work suggests that the lateral confinement in nanostripes of the frustrated system can completely suppress the Hall motion and significantly speed up the motion along the gradient direction. The simulated results are well explained by Thiele theory. It is demonstrated that the acceleration of the motion is mainly determined by the Gilbert damping constant, which provides useful information for finding potential materials for skyrmion-based spintronics. |
| first_indexed | 2024-03-12T16:36:55Z |
| format | Article |
| id | doaj.art-db793ee133b343e5bea000f17fe89960 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:36:55Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-db793ee133b343e5bea000f17fe899602023-08-08T14:51:05ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120505303710.1088/1367-2630/aac24cMagnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnetsJ J Liang0J H Yu1J Chen2M H Qin3M Zeng4https://orcid.org/0000-0003-3594-7619X B Lu5X S Gao6J–M Liu7Institute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal University , Guangzhou 510006, People’s Republic of ChinaLaboratory of Solid State Microstructures and Innovative Center for Advanced Microstructures, Nanjing University , Nanjing 210093, People’s Republic of ChinaThe study of skyrmion/antiskyrmion motion in magnetic materials is very important in particular for the spintronics applications. In this work, we study the dynamics of isolated skyrmions and antiskyrmions in frustrated magnets driven by magnetic field gradient, using the Landau–Lifshitz–Gilbert simulations on the frustrated classical Heisenberg model on the triangular lattice. A Hall-like motion induced by the gradient is revealed in bulk system, similar to that in the well-studied chiral magnets. More interestingly, our work suggests that the lateral confinement in nanostripes of the frustrated system can completely suppress the Hall motion and significantly speed up the motion along the gradient direction. The simulated results are well explained by Thiele theory. It is demonstrated that the acceleration of the motion is mainly determined by the Gilbert damping constant, which provides useful information for finding potential materials for skyrmion-based spintronics.https://doi.org/10.1088/1367-2630/aac24cskyrmion dynamicsfield gradientfrustrated magnets |
| spellingShingle | J J Liang J H Yu J Chen M H Qin M Zeng X B Lu X S Gao J–M Liu Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets New Journal of Physics skyrmion dynamics field gradient frustrated magnets |
| title | Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| title_full | Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| title_fullStr | Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| title_full_unstemmed | Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| title_short | Magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| title_sort | magnetic field gradient driven dynamics of isolated skyrmions and antiskyrmions in frustrated magnets |
| topic | skyrmion dynamics field gradient frustrated magnets |
| url | https://doi.org/10.1088/1367-2630/aac24c |
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