Spin current generation due to differential rotation
The authors study here 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, this theory describes spins and spin currents arising from differentially rotating systems regardless of vorticity. They demonstrate the generation of spin currents in differentially rotating systems, such as liquid metals with Taylor-Couette flow. This alternative mechanism will be important in the development of nanomechanical spin devices.
Authors
- Mamoru Matsuo (ORCID: https://orcid.org/0000-0003-1303-7614)
- Takumi Funato (ORCID: https://orcid.org/0000-0003-3244-5226)
- Shin Nakamura (ORCID: https://orcid.org/0000-0003-3651-1518)
- Norihiro Tanahashi (ORCID: https://orcid.org/0000-0001-7539-7637)
- Shunichiro Kinoshita (ORCID: https://orcid.org/0000-0003-4811-5707)
Institutions
- Nihon University (JP)
- Japan Atomic Energy Agency (JP)
- Keio University (JP)
- Kavli Institute for Theoretical Sciences (CN)
- RIKEN Center for Emergent Matter Science (JP)
- University of Chinese Academy of Sciences (CN)
- Chuo University (JP)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-02-06
- DOI
- https://doi.org/10.1103/physrevb.111.l060403
- Citations
- 1
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 1.25
Funders
- Chuo University
- Japan Science and Technology Corporation
- National Natural Science Foundation of China
- Japan Society for the Promotion of Science
- Core Research for Evolutional Science and Technology