Giant Rashba spin-orbit coupling on light-element polar superlattices
We present a new strategy to amplify the spin-orbit coupling (SOC) effect in a simple metal-based polar superlattices with light elements to create a giant Rashba SOC up to ${\ensuremath{\alpha}}_{R}\ensuremath{\approx}3.80$ eV \AA{} with negative sign. First-principles calculations demonstrate that the giant ${\ensuremath{\alpha}}_{R}$ originates from optimizing the internal electric field, which comes from the polarity, charge transfer, and superlattice systems. This strategy provides an effective way to design a next-generation spintronics device without the use of heavy elements.
Authors
- Koichi Kusakabe (ORCID: https://orcid.org/0000-0002-0206-8864)
- Yusuf Wicaksono (ORCID: https://orcid.org/0000-0002-8164-9586)
- Bo Gu (ORCID: https://orcid.org/0000-0003-2211-4116)
- Alexander Evseev (ORCID: https://orcid.org/0000-0003-3972-6709)
- Seiji Yunoki (ORCID: https://orcid.org/0000-0002-8167-452X)
- Irina Piyanzina
- Jing‐Yang You (ORCID: https://orcid.org/0000-0003-4559-6592)
- Sadamichi Maekawa (ORCID: https://orcid.org/0000-0002-4237-7741)
Institutions
- Japan Atomic Energy Agency (JP)
- National University of Singapore (SG)
- University of Hyogo (JP)
- Kazan Federal University (RU)
- Kavli Institute for Theoretical Sciences (CN)
- RIKEN (JP)
- RIKEN Center for Emergent Matter Science (JP)
- Advanced Science Research Center (JP)
- University of Chinese Academy of Sciences (CN)
- Graduate School USA (US)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2024-12-18
- DOI
- https://doi.org/10.1103/physrevb.110.l220408
- Citations
- 1
- Primary Topic
- Topological Materials and Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.34
Funders
- National Research Foundation Singapore
- Ministry of Education, Culture, Sports, Science and Technology
- Chinese Academy of Sciences
- Japan Society for the Promotion of Science
- Japan Science and Technology Agency