Control of a ferrimagnet phase by a two-component magnetic field
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909178138722304 |
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| author | Ignatyeva, Daria O. Gusev, Nikolay A. Zvezdin, Anatoly K. Belotelov, Vladimir I. |
| author_facet | Ignatyeva, Daria O. Gusev, Nikolay A. Zvezdin, Anatoly K. Belotelov, Vladimir I. |
| contents | We report a theoretical study of the phase diagram of a ferrimagnetic iron-garnet with uniaxial anisotropy near a magnetization compensation point in the presence of a two-component magnetic field. The study is performed based on a quasi-antiferromagnetic approximation. The number and stability of the equilibrium states of the Neel vector are analyzed using the effective energy function. It is shown that application of the small out-of-plane magnetic field in addition to the stronger in-plane magnetic field significantly changes the equilibrium states of a ferrimagnet. The possibilities to control the equilibrium Neel vector position and to switch between the monostable and bistable states by tuning the value and ratio of the in-plane and out-of-plane magnetic field components are demonstrated. This opens new possibilities for the utilization of ferrimagnets since the magnetic field could be changed much faster than the temperature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14576 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Control of a ferrimagnet phase by a two-component magnetic field Ignatyeva, Daria O. Gusev, Nikolay A. Zvezdin, Anatoly K. Belotelov, Vladimir I. Materials Science We report a theoretical study of the phase diagram of a ferrimagnetic iron-garnet with uniaxial anisotropy near a magnetization compensation point in the presence of a two-component magnetic field. The study is performed based on a quasi-antiferromagnetic approximation. The number and stability of the equilibrium states of the Neel vector are analyzed using the effective energy function. It is shown that application of the small out-of-plane magnetic field in addition to the stronger in-plane magnetic field significantly changes the equilibrium states of a ferrimagnet. The possibilities to control the equilibrium Neel vector position and to switch between the monostable and bistable states by tuning the value and ratio of the in-plane and out-of-plane magnetic field components are demonstrated. This opens new possibilities for the utilization of ferrimagnets since the magnetic field could be changed much faster than the temperature. |
| title | Control of a ferrimagnet phase by a two-component magnetic field |
| topic | Materials Science |
| url | https://arxiv.org/abs/2404.14576 |