Magneto-rotation coupling for ferromagnetic nanoelement embedded in elastic substrate
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915351533453312 |
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| author | Centała, Grzegorz Kłos, Jarosław W. |
| author_facet | Centała, Grzegorz Kłos, Jarosław W. |
| contents | This study investigates magneto-rotational coupling as a distinct contribution to magnetoelastic interactions, which can be influenced by magnetic anisotropy. We determine magneto-rotational coupling coefficients that incorporate the shape anisotropy of a magnetic nanoelement (strip) and demonstrate that this type of coupling can be modified through geometric adjustments. Furthermore, we analyze the magneto-rotational contribution to the magnetoelastic field in a ferromagnetic strip embedded in a nonmagnetic substrate. Both Rayleigh and Love waves are considered sources of the magnetoelastic field, and we examine how the strength of the magneto-rotational coupling varies with the direction of the magnetization, and the aspect ratio of the strip cross-section. We analyze the changes of the magneto-rotational contribution to the magnetoelastic field with an increasing thickness-to-width ratio, assuming a fixed magnetization direction corresponding to the strongest magnetoelastic coupling. For Love wave, the contribution of the out-of-plane component increases monotonically, while that of the in-plane component decreases monotonically. In the case of the Rayleigh wave, only the out-of-plane component contributes, and it approaches zero as the cross-section becomes square. These findings enhance the understanding of magneto-rotational coupling in magnonic nanostructures. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_03376 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magneto-rotation coupling for ferromagnetic nanoelement embedded in elastic substrate Centała, Grzegorz Kłos, Jarosław W. Mesoscale and Nanoscale Physics This study investigates magneto-rotational coupling as a distinct contribution to magnetoelastic interactions, which can be influenced by magnetic anisotropy. We determine magneto-rotational coupling coefficients that incorporate the shape anisotropy of a magnetic nanoelement (strip) and demonstrate that this type of coupling can be modified through geometric adjustments. Furthermore, we analyze the magneto-rotational contribution to the magnetoelastic field in a ferromagnetic strip embedded in a nonmagnetic substrate. Both Rayleigh and Love waves are considered sources of the magnetoelastic field, and we examine how the strength of the magneto-rotational coupling varies with the direction of the magnetization, and the aspect ratio of the strip cross-section. We analyze the changes of the magneto-rotational contribution to the magnetoelastic field with an increasing thickness-to-width ratio, assuming a fixed magnetization direction corresponding to the strongest magnetoelastic coupling. For Love wave, the contribution of the out-of-plane component increases monotonically, while that of the in-plane component decreases monotonically. In the case of the Rayleigh wave, only the out-of-plane component contributes, and it approaches zero as the cross-section becomes square. These findings enhance the understanding of magneto-rotational coupling in magnonic nanostructures. |
| title | Magneto-rotation coupling for ferromagnetic nanoelement embedded in elastic substrate |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2503.03376 |