Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions
Abstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical...
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2017-08-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-017-07907-0 |
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doaj-76057c31e32e4b51b6a9bca3772985e02020-12-08T00:25:43ZengNature Publishing GroupScientific Reports2045-23222017-08-01711810.1038/s41598-017-07907-0Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactionsJ. Chen0W. P. Cai1M. H. Qin2S. Dong3X. B. Lu4X. S. Gao5J.-M. Liu6Institute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal UniversityInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal UniversityInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal UniversityDepartment of Physics, Southeast UniversityInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal UniversityInstitute for Advanced Materials, South China Academy of Advanced Optoelectronics and Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, South China Normal UniversityLaboratory of Solid State Microstructures, Nanjing UniversityAbstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical orders can be developed depending on the interaction anisotropy magnitude, consistent with experimental observations at low temperatures. Furthermore, the uniaxial stress induced creation and annihilation of skyrmions can be also qualitatively reproduced in our Monte Carlo simulations. Our work suggests that the interaction anisotropy tuned by applied uniaxial stress may play an essential role in modulating the magnetic orders in strained chiral magnets.https://doi.org/10.1038/s41598-017-07907-0 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu |
| spellingShingle |
J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions Scientific Reports |
| author_facet |
J. Chen W. P. Cai M. H. Qin S. Dong X. B. Lu X. S. Gao J.-M. Liu |
| author_sort |
J. Chen |
| title |
Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions |
| title_short |
Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions |
| title_full |
Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions |
| title_fullStr |
Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions |
| title_full_unstemmed |
Helical and skyrmion lattice phases in three-dimensional chiral magnets: Effect of anisotropic interactions |
| title_sort |
helical and skyrmion lattice phases in three-dimensional chiral magnets: effect of anisotropic interactions |
| publisher |
Nature Publishing Group |
| series |
Scientific Reports |
| issn |
2045-2322 |
| publishDate |
2017-08-01 |
| description |
Abstract In this work, we study the magnetic orders of a classical spin model with anisotropic exchanges and Dzyaloshinskii-Moriya interactions in order to understand the uniaxial stress effect in chiral magnets such as MnSi. Variational zero temperature calculations demonstrate that various helical orders can be developed depending on the interaction anisotropy magnitude, consistent with experimental observations at low temperatures. Furthermore, the uniaxial stress induced creation and annihilation of skyrmions can be also qualitatively reproduced in our Monte Carlo simulations. Our work suggests that the interaction anisotropy tuned by applied uniaxial stress may play an essential role in modulating the magnetic orders in strained chiral magnets. |
| url |
https://doi.org/10.1038/s41598-017-07907-0 |
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