Gænice: a general model for magnon band structure of artificial spin ices
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866914851374235648 |
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| author | Alatteili, Ghanem Martinez, Victoria Roxburgh, Alison Gartside, Jack C. Heinonen, Olle G. Gliga, Sebastian Iacocca, Ezio |
| author_facet | Alatteili, Ghanem Martinez, Victoria Roxburgh, Alison Gartside, Jack C. Heinonen, Olle G. Gliga, Sebastian Iacocca, Ezio |
| contents | Arrays of artificial spin ices exhibit reconfigurable ferromagnetic resonance frequencies that can be leveraged and designed for potential applications.However, analytical and numerical studies of the frequency response of artificial spin ices have remained somewhat limited due to the need of take into account nonlocal dipole fields in theoretical calculations or by long computation times in micromagnetic simulations. Here, we introduce Gaenice, a framework to compute magnon dispersion relations of arbitrary artificial spin ice configurations. Gaenice makes use of a tight-binding approach to compute the magnon bands. It also provides the user complete control of the interaction terms included, e.g., external field, anisotropy, exchange, and dipole, making it useful also to compute ferromagnetic resonances for a variety of structures, such as multilayers and ensembles of weakly or non-interacting nanoparticles. Because it relies on a semi-analytical model, Gaenice is computationally inexpensive and efficient, making it an attractive tool for the exploration of large parameter spaces. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2309_03826 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Gænice: a general model for magnon band structure of artificial spin ices Alatteili, Ghanem Martinez, Victoria Roxburgh, Alison Gartside, Jack C. Heinonen, Olle G. Gliga, Sebastian Iacocca, Ezio Mesoscale and Nanoscale Physics Arrays of artificial spin ices exhibit reconfigurable ferromagnetic resonance frequencies that can be leveraged and designed for potential applications.However, analytical and numerical studies of the frequency response of artificial spin ices have remained somewhat limited due to the need of take into account nonlocal dipole fields in theoretical calculations or by long computation times in micromagnetic simulations. Here, we introduce Gaenice, a framework to compute magnon dispersion relations of arbitrary artificial spin ice configurations. Gaenice makes use of a tight-binding approach to compute the magnon bands. It also provides the user complete control of the interaction terms included, e.g., external field, anisotropy, exchange, and dipole, making it useful also to compute ferromagnetic resonances for a variety of structures, such as multilayers and ensembles of weakly or non-interacting nanoparticles. Because it relies on a semi-analytical model, Gaenice is computationally inexpensive and efficient, making it an attractive tool for the exploration of large parameter spaces. |
| title | Gænice: a general model for magnon band structure of artificial spin ices |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2309.03826 |