Simulating altermagnets using mumax+
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866908973172523008 |
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| author | Moreels, Lars Bechler, Nicolai Van Waeyenberge, Bartel Leliaert, Jonathan Masell, Jan |
| author_facet | Moreels, Lars Bechler, Nicolai Van Waeyenberge, Bartel Leliaert, Jonathan Masell, Jan |
| contents | In this paper, we demonstrate how altermagnets can be simulated in the recently released micromagnetic simulation package mumax+. We have added a new magnet class for d-wave altermagnets and demonstrate how mumax+ is able to reproduce the analytical solutions for line profiles of the Néel vector and net magnetization for a Bloch domain wall. Next, we show simulation results of the magnon dispersion relation and its dependence on the anisotropic nature of the exchange interaction. Finally, we study the motion of a Néel skyrmion by applying a spin transfer torque. This new feature was implemented by extending the pre-existing code base for antiferromagnetic simulations. The object-oriented design of mumax+ allows for a correct calculation of the magnetostatic field in multi-sublattice systems, a feature that many other micromagnetic simulators lack. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_15454 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Simulating altermagnets using mumax+ Moreels, Lars Bechler, Nicolai Van Waeyenberge, Bartel Leliaert, Jonathan Masell, Jan Mesoscale and Nanoscale Physics In this paper, we demonstrate how altermagnets can be simulated in the recently released micromagnetic simulation package mumax+. We have added a new magnet class for d-wave altermagnets and demonstrate how mumax+ is able to reproduce the analytical solutions for line profiles of the Néel vector and net magnetization for a Bloch domain wall. Next, we show simulation results of the magnon dispersion relation and its dependence on the anisotropic nature of the exchange interaction. Finally, we study the motion of a Néel skyrmion by applying a spin transfer torque. This new feature was implemented by extending the pre-existing code base for antiferromagnetic simulations. The object-oriented design of mumax+ allows for a correct calculation of the magnetostatic field in multi-sublattice systems, a feature that many other micromagnetic simulators lack. |
| title | Simulating altermagnets using mumax+ |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2604.15454 |