Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3
Abstract The flexomagnetic effect involves the coupling of inhomogeneous mechanical and magnetic excitations to generate exotic spin orders. The intrinsic edge stress associated with lifting of periodic degeneracy at surfaces or edges in nanostructures facilitates the flexocoupling effects. Here, we...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-03-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-023-00547-w |
| _version_ | 1797865639001456640 |
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| author | Guotao Qiu Zongjin Li Kun Zhou Yongqing Cai |
| author_facet | Guotao Qiu Zongjin Li Kun Zhou Yongqing Cai |
| author_sort | Guotao Qiu |
| collection | DOAJ |
| description | Abstract The flexomagnetic effect involves the coupling of inhomogeneous mechanical and magnetic excitations to generate exotic spin orders. The intrinsic edge stress associated with lifting of periodic degeneracy at surfaces or edges in nanostructures facilitates the flexocoupling effects. Here, we combine first-principles calculation and Maximum Information Coefficient (MIC) statistics to quantitatively reveal the impact of bending on the geometries, spin ordering state, and exchange interactions in chromium triiodide (CrI3) nanoribbons. Our results reveal a divergent magnetic ground state at small curvature but a plumb line shape noncollinear state at large curvatures. More importantly, our work establishes a gradient dependence of the exchange coupling on the locally asymmetric bending angles of the Cr-I-Cr hinge, governed by the coupling of the t 2g and e g states of Cr. The superexchange gradient accompanied with the bending-induced inhomogeneous deformation sheds light on the evolution of magnetic ordering associated with asymmetric coordinating systems for sensors and spintronics. |
| first_indexed | 2024-04-09T23:12:28Z |
| format | Article |
| id | doaj.art-e57130bfca0e4218a423b835562f997a |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-04-09T23:12:28Z |
| publishDate | 2023-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-e57130bfca0e4218a423b835562f997a2023-03-22T10:20:45ZengNature Portfolionpj Quantum Materials2397-46482023-03-01811610.1038/s41535-023-00547-wFlexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3Guotao Qiu0Zongjin Li1Kun Zhou2Yongqing Cai3Institute of Applied Physics and Materials Engineering, University of MacauFaculty of Innovation Engineering, Macao University of Science and Technology,, Avenida Wai LongSchool of Mechanical and Aerospace Engineering, Nanyang Technological UniversityInstitute of Applied Physics and Materials Engineering, University of MacauAbstract The flexomagnetic effect involves the coupling of inhomogeneous mechanical and magnetic excitations to generate exotic spin orders. The intrinsic edge stress associated with lifting of periodic degeneracy at surfaces or edges in nanostructures facilitates the flexocoupling effects. Here, we combine first-principles calculation and Maximum Information Coefficient (MIC) statistics to quantitatively reveal the impact of bending on the geometries, spin ordering state, and exchange interactions in chromium triiodide (CrI3) nanoribbons. Our results reveal a divergent magnetic ground state at small curvature but a plumb line shape noncollinear state at large curvatures. More importantly, our work establishes a gradient dependence of the exchange coupling on the locally asymmetric bending angles of the Cr-I-Cr hinge, governed by the coupling of the t 2g and e g states of Cr. The superexchange gradient accompanied with the bending-induced inhomogeneous deformation sheds light on the evolution of magnetic ordering associated with asymmetric coordinating systems for sensors and spintronics.https://doi.org/10.1038/s41535-023-00547-w |
| spellingShingle | Guotao Qiu Zongjin Li Kun Zhou Yongqing Cai Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 npj Quantum Materials |
| title | Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 |
| title_full | Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 |
| title_fullStr | Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 |
| title_full_unstemmed | Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 |
| title_short | Flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two-dimensional magnetic CrI3 |
| title_sort | flexomagnetic noncollinear state with a plumb line shape spin configuration in edged two dimensional magnetic cri3 |
| url | https://doi.org/10.1038/s41535-023-00547-w |
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