Costa, Andreas and Fabian, Jaroslav (2025) Transport signatures of radial Rashba spin-orbit coupling at ferromagnet/superconductor interfaces. PHYSICAL REVIEW B, 111 (5): 054512. ISSN 2469-9950, 2469-9969
Full text not available from this repository. (Request a copy)Abstract
Spin-orbit coupling (SOC) emerging at the interfaces of superconducting magnetic tunnel junctions is at the heart of multiple unprecedented physical phenomena, covering triplet proximity effects induced by unconventional (spin-flip) Andreev reflections, giant transport magnetoanisotropies, sizable tunneling anomalous Hall effects, and electrically controlled current-reversing 0-pi(-like) transitions in Josephson contacts. Recent first-principles calculations proposed that the Rashba spin-orbit fields in twisted graphene/transition-metal dichalcogenide and van der Waals multilayers can-owing to broken mirror symmetries-exhibit an unconventional radial component (with spin parallel to the electron's momentum), which can be quantified by the Rashba angle theta R. We theoretically explore the ramifications of radial Rashba SOC at the interfaces of vertical ferromagnet/superconductor tunnel junctions with a focus on the magnetoanisotropies of the tunneling and tunneling-anomalous-Hall-effect conductances. Our results demonstrate that theta Rcan be experimentally extracted from respective magnetization-angle shifts, providing a robust way to probe the radial Rashba SOC induced by twisted multilayers that are placed as tunneling barriers between ferromagnetic and superconducting electrodes.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION; SUPERCURRENTS; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Jun 2026 08:39 |
| Last Modified: | 23 Jun 2026 08:39 |
| URI: | https://pred.uni-regensburg.de/id/eprint/66007 |
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