Curvature-induced valley-dependent spin-orbit interaction
We construct a general theoretical framework for describing curvature-induced spin-orbit interactions on the basis of group theory. Our theory can systematically determine the emergence of spin splitting in the band structure according to symmetry in the wave number space and the bending direction of the material. As illustrative examples, we derive the curvature-induced spin-orbit coupling for carbon and silicon nanotubes. Our theory offers a strategy for designing valley-contrasting spin-orbit coupled materials by tuning their curvatures.
Authors
- Takeo Kato (ORCID: https://orcid.org/0000-0001-7984-9354)
- Wataru Izumida (ORCID: https://orcid.org/0000-0003-3854-9528)
- Ai Yamakage (ORCID: https://orcid.org/0000-0003-4052-774X)
- Kentaro Sato (ORCID: https://orcid.org/0000-0001-6706-2175)
- Mamoru Matsuo (ORCID: https://orcid.org/0000-0003-1303-7614)
- Rin Okuyama (ORCID: https://orcid.org/0000-0002-7945-4878)
- Takumi Funato (ORCID: https://orcid.org/0000-0003-3244-5226)
- Tetsuya Sato (ORCID: https://orcid.org/0000-0003-0290-9448)
Institutions
- Japan Atomic Energy Agency (JP)
- Meiji University (JP)
- Chinese Academy of Sciences (CN)
- Tohoku University (JP)
- Keio University (JP)
- Sendai National College of Technology (JP)
- RIKEN (JP)
- Nagoya University (JP)
- The University of Tokyo (JP)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-01-09
- DOI
- https://doi.org/10.1103/physrevb.111.045121
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Sumitomo Foundation
- National Natural Science Foundation of China
- Chinese Academy of Sciences
- Japan Society for the Promotion of Science