Simulating anti-skyrmions on a lattice
Abstract Magnetic skyrmions are meta-stable spin structures that naturally emerge in magnetic materials. While a vast amount of effort has gone into the study of their properties, their counterpart of opposite topological charge, the anti-skyrmion, has not received as much attention. We aim to close...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-22043-0 |
| _version_ | 1797988465632083968 |
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| author | Juan C. Criado Sebastian Schenk Michael Spannowsky Peter D. Hatton L. A. Turnbull |
| author_facet | Juan C. Criado Sebastian Schenk Michael Spannowsky Peter D. Hatton L. A. Turnbull |
| author_sort | Juan C. Criado |
| collection | DOAJ |
| description | Abstract Magnetic skyrmions are meta-stable spin structures that naturally emerge in magnetic materials. While a vast amount of effort has gone into the study of their properties, their counterpart of opposite topological charge, the anti-skyrmion, has not received as much attention. We aim to close this gap by deploying Monte Carlo simulations of spin-lattice systems in order to investigate which interactions support anti-skyrmions, as well as skyrmions of Bloch and Néel type. We find that the combination of ferromagnetic exchange and Dzyaloshinskii–Moriya (DM) interactions is able to stabilize each of the three types, depending on the specific structure of the DM interactions. Considering a three-dimensional spin lattice model, we provide a finite-temperature phase diagram featuring a stable anti-skyrmion lattice phase for a large range of temperatures. In addition, we also shed light on the creation and annihilation processes of these anti-skyrmion tubes and study the effects of the DM interaction strength on their typical size. |
| first_indexed | 2024-04-11T08:04:31Z |
| format | Article |
| id | doaj.art-19d19cbb40db4c65b1d8533b8837ff38 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-11T08:04:31Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-19d19cbb40db4c65b1d8533b8837ff382022-12-22T04:35:37ZengNature PortfolioScientific Reports2045-23222022-11-0112111110.1038/s41598-022-22043-0Simulating anti-skyrmions on a latticeJuan C. Criado0Sebastian Schenk1Michael Spannowsky2Peter D. Hatton3L. A. Turnbull4Department of Physics, Institute for Particle Physics Phenomenology, Durham UniversityDepartment of Physics, Institute for Particle Physics Phenomenology, Durham UniversityDepartment of Physics, Institute for Particle Physics Phenomenology, Durham UniversityDepartment of Physics, Centre for Materials Physics, Durham UniversityDepartment of Physics, Centre for Materials Physics, Durham UniversityAbstract Magnetic skyrmions are meta-stable spin structures that naturally emerge in magnetic materials. While a vast amount of effort has gone into the study of their properties, their counterpart of opposite topological charge, the anti-skyrmion, has not received as much attention. We aim to close this gap by deploying Monte Carlo simulations of spin-lattice systems in order to investigate which interactions support anti-skyrmions, as well as skyrmions of Bloch and Néel type. We find that the combination of ferromagnetic exchange and Dzyaloshinskii–Moriya (DM) interactions is able to stabilize each of the three types, depending on the specific structure of the DM interactions. Considering a three-dimensional spin lattice model, we provide a finite-temperature phase diagram featuring a stable anti-skyrmion lattice phase for a large range of temperatures. In addition, we also shed light on the creation and annihilation processes of these anti-skyrmion tubes and study the effects of the DM interaction strength on their typical size.https://doi.org/10.1038/s41598-022-22043-0 |
| spellingShingle | Juan C. Criado Sebastian Schenk Michael Spannowsky Peter D. Hatton L. A. Turnbull Simulating anti-skyrmions on a lattice Scientific Reports |
| title | Simulating anti-skyrmions on a lattice |
| title_full | Simulating anti-skyrmions on a lattice |
| title_fullStr | Simulating anti-skyrmions on a lattice |
| title_full_unstemmed | Simulating anti-skyrmions on a lattice |
| title_short | Simulating anti-skyrmions on a lattice |
| title_sort | simulating anti skyrmions on a lattice |
| url | https://doi.org/10.1038/s41598-022-22043-0 |
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