Antiferromagnetic droplet soliton driven by spin current
Fuente:
arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866916284436840448 |
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| author | Ovcharov, Roman V. Hamdi, Mohammad Ivanov, Boris A. Åkerman, Johan Khymyn, Roman S. |
| author_facet | Ovcharov, Roman V. Hamdi, Mohammad Ivanov, Boris A. Åkerman, Johan Khymyn, Roman S. |
| contents | We demonstrate that a spin current flowing through a nano-contact into a uniaxial antiferromagnet with first- and second-order anisotropy can excite a self-localized dynamic magnetic soliton, known as a spin-wave droplet in ferromagnets. The droplet nucleates at a certain threshold current with the frequency of the Néel vector precession laying below the antiferromagnetic resonance. The frequency exhibits nonlinear behavior with the increasing of applied current. At the high value of applied torque, the soliton mode transforms, and the oscillator emits spin waves propagating in the antiferromagnetic layer. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_18583 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Antiferromagnetic droplet soliton driven by spin current Ovcharov, Roman V. Hamdi, Mohammad Ivanov, Boris A. Åkerman, Johan Khymyn, Roman S. Mesoscale and Nanoscale Physics We demonstrate that a spin current flowing through a nano-contact into a uniaxial antiferromagnet with first- and second-order anisotropy can excite a self-localized dynamic magnetic soliton, known as a spin-wave droplet in ferromagnets. The droplet nucleates at a certain threshold current with the frequency of the Néel vector precession laying below the antiferromagnetic resonance. The frequency exhibits nonlinear behavior with the increasing of applied current. At the high value of applied torque, the soliton mode transforms, and the oscillator emits spin waves propagating in the antiferromagnetic layer. |
| title | Antiferromagnetic droplet soliton driven by spin current |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2311.18583 |