Frank, Tobias and Faria Junior, Paulo E. and Zollner, Klaus and Fabian, Jaroslav (2024) Emergence of radial Rashba spin-orbit fields in twisted van der Waals heterostructures. PHYSICAL REVIEW B, 109 (24): L241403. ISSN 2469-9950, 2469-9969
Full text not available from this repository.Abstract
Rashba spin-orbit coupling is a quintessential spin interaction appearing in virtually any electronic heterostructure. Its paradigmatic spin texture in the momentum space forms a tangential vector field. Using first-principles investigations, we demonstrate that in twisted homobilayers and heteromultilayers, the Rashba spin texture can be predominantly radial, parallel to the momentum. Specifically, we study four experimentally relevant structures: twisted bilayer graphene (Gr), twisted bilayer WSe 2 , and twisted multilayers WSe 2 / Gr / WSe 2 and WSe 2 / Gr / Gr / WSe 2 . We show that the Rashba spin texture in such structures can be controlled by an electric field, allowing to tune it from radial to tangential. Such spin-orbit engineering should be useful for designing spin -charge conversion and spin-orbit torque schemes, as well as for controlling correlated phases and superconductivity in van der Waals materials.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | SUPERCELL; SEMIMETAL; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Jul 2025 10:09 |
| Last Modified: | 17 Jul 2025 10:09 |
| URI: | https://pred.uni-regensburg.de/id/eprint/63556 |
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