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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2406.02388 |
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| _version_ | 1866916352007077888 |
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| author | Cai, Chengyuan Zhang, Zubiao Zou, Ji Bauer, Gerrit E. W. Yu, Tao |
| author_facet | Cai, Chengyuan Zhang, Zubiao Zou, Ji Bauer, Gerrit E. W. Yu, Tao |
| contents | We address the photonic spin-orbit coupling known from nano-optics and plasmonics in the microwave regime. The spin $\mathbf{S}$ and momentum $\mathbf{q}$ of microwaves emitted by an excited magnetic particle are locked by $\mathbf{q}\cdot\mathbf{S}=0$ with a fixed chirality $\hat{\mathbf{n}}\cdot(\hat{\bf S}\times\hat{\bf q})=1$ when evanescent along $\hat{\mathbf{n}}\perp {\bf q}$. This field excites magnons in a nearby magnetic film in the form of directional beams that rotate with the magnetization direction. The exchange of these magnons between two distant nanomagnets leads to a highly tunable strong coupling and entangles their excited states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_02388 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spin-orbit locking of magnons with localized microwave fields Cai, Chengyuan Zhang, Zubiao Zou, Ji Bauer, Gerrit E. W. Yu, Tao Mesoscale and Nanoscale Physics We address the photonic spin-orbit coupling known from nano-optics and plasmonics in the microwave regime. The spin $\mathbf{S}$ and momentum $\mathbf{q}$ of microwaves emitted by an excited magnetic particle are locked by $\mathbf{q}\cdot\mathbf{S}=0$ with a fixed chirality $\hat{\mathbf{n}}\cdot(\hat{\bf S}\times\hat{\bf q})=1$ when evanescent along $\hat{\mathbf{n}}\perp {\bf q}$. This field excites magnons in a nearby magnetic film in the form of directional beams that rotate with the magnetization direction. The exchange of these magnons between two distant nanomagnets leads to a highly tunable strong coupling and entangles their excited states. |
| title | Spin-orbit locking of magnons with localized microwave fields |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2406.02388 |