Spin current generation due to differential rotation
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909498301480960 |
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| author | Funato, Takumi Kinoshita, Shunichiro Tanahashi, Norihiro Nakamura, Shin Matsuo, Mamoru |
| author_facet | Funato, Takumi Kinoshita, Shunichiro Tanahashi, Norihiro Nakamura, Shin Matsuo, Mamoru |
| contents | We study nonequilibrium spin dynamics in differentially rotating systems, deriving an effective Hamiltonian for conduction electrons in the comoving frame. In contrast to conventional spin current generation mechanisms that require vorticity, our theory describes spins and spin currents arising from differentially rotating systems regardless of vorticity. We demonstrate the generation of spin currents in differentially rotating systems, such as liquid metals with Taylor-Couette flow. Our alternative mechanism will be important in the development of nanomechanical spin devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_00174 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Spin current generation due to differential rotation Funato, Takumi Kinoshita, Shunichiro Tanahashi, Norihiro Nakamura, Shin Matsuo, Mamoru Mesoscale and Nanoscale Physics High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory We study nonequilibrium spin dynamics in differentially rotating systems, deriving an effective Hamiltonian for conduction electrons in the comoving frame. In contrast to conventional spin current generation mechanisms that require vorticity, our theory describes spins and spin currents arising from differentially rotating systems regardless of vorticity. We demonstrate the generation of spin currents in differentially rotating systems, such as liquid metals with Taylor-Couette flow. Our alternative mechanism will be important in the development of nanomechanical spin devices. |
| title | Spin current generation due to differential rotation |
| topic | Mesoscale and Nanoscale Physics High Energy Physics - Phenomenology High Energy Physics - Theory Nuclear Theory |
| url | https://arxiv.org/abs/2401.00174 |