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Field-induced transformation between triangular and square skyrmion crystals in a tetragonal polar magnet
| Title: | Field-induced transformation between triangular and square skyrmion crystals in a tetragonal polar magnet |
| Authors: | Hayami, Satoru Browse this author |
| Issue Date: | 1-May-2024 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review B |
| Volume: | 109 |
| Issue: | 18 |
| Start Page: | 184419 |
| Publisher DOI: | 10.1103/PhysRevB.109.184419 |
| Abstract: | Magnetic skyrmions with topologically nontrivial spin textures form a variety of periodic structures depending on microscopic interactions and lattice symmetry. We theoretically investigate a transformation between triangular and square skyrmion crystals against an external magnetic field in a polar tetragonal magnet. By performing the simulated annealing for a classical spin model, we show that the competition of the Dzyaloshinskii-Moriya interaction at multiple wave vectors is a key ingredient in inducing the structural transition in terms of the skyrmion crystals. The present results indicate the importance of magnetic frustration in momentum space as the origin of exotic topological phase transitions. |
| Rights: | ©2024 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/92711 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 速水 賢
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