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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2026
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2604.16938 |
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| _version_ | 1866915943587774464 |
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| author | Kulbak, Kutay Boualem, Mohamed Iyad Masse, Charlie de Toledo, Mariana Delalibera Temnov, Vasily V. |
| author_facet | Kulbak, Kutay Boualem, Mohamed Iyad Masse, Charlie de Toledo, Mariana Delalibera Temnov, Vasily V. |
| contents | The dynamics of magnetization near a stable equilibrium in ferromagnetic nanomagnets are examined within the Landau--Lifshitz--Gilbert (LLG) framework. For a small angle precession, the dependence of ferromagnetic resonance (FMR) frequency, the damping constant and the resulting quality factor $Q$ of the resonance on the local curvature around the free-energy minimum is systematically analyzed. Special attention is devoted to the behavior of the FMR decay time in the vicinity of bifurcation points, where the number of metastable energy minima changes and the commonly used approximation for the quality factor $Q\simeq 1/2α$ (where $α$ denotes the Gilbert damping) fails. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_16938 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | On the Energy Dissipation in the Landau-Lifshitz-Gilbert Equation Kulbak, Kutay Boualem, Mohamed Iyad Masse, Charlie de Toledo, Mariana Delalibera Temnov, Vasily V. Materials Science Mathematical Physics Classical Physics The dynamics of magnetization near a stable equilibrium in ferromagnetic nanomagnets are examined within the Landau--Lifshitz--Gilbert (LLG) framework. For a small angle precession, the dependence of ferromagnetic resonance (FMR) frequency, the damping constant and the resulting quality factor $Q$ of the resonance on the local curvature around the free-energy minimum is systematically analyzed. Special attention is devoted to the behavior of the FMR decay time in the vicinity of bifurcation points, where the number of metastable energy minima changes and the commonly used approximation for the quality factor $Q\simeq 1/2α$ (where $α$ denotes the Gilbert damping) fails. |
| title | On the Energy Dissipation in the Landau-Lifshitz-Gilbert Equation |
| topic | Materials Science Mathematical Physics Classical Physics |
| url | https://arxiv.org/abs/2604.16938 |