Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 32: Spin Transport and Orbitronics, Spin-Hall Effects II (joint session MA/TT)
MA 32.1: Vortrag
Mittwoch, 19. März 2025, 17:30–17:45, H19
Orbital torques and orbital pumping in two-dimensional rare-earth dichalcogenides — •Mahmoud Zeer1,2,3, Dongwook Go3, Mathias Kläui3,4, Wulf Wulfhekel5, Stefan Blügel1, and Yuriy Yuriy Mokrousov1,3 — 1Peter Gr *unberg Institute, Forschungszentrum J *ulich, 52425 J *ulich, Germany — 2Department of Physics, RWTH Aachen University, 52056 Aachen, German — 3Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany — 4Centre for Quantum Spintronics, Department of Physics, Norwegian University of Science and Technology, 7491 Trondheim, Norway — 55Physikalisches Institut, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany
The design of spin-orbit torque (SOT) properties in two-dimensional (2D) materials represents a key challenge in modern spintronics. We now explore ferromagnetic Janus H-phase monolayers of 4f-Eu rare-earth dichalcogenides EuSP, EuSSe, and EuSCl using first-principles calculations. Our findings reveal that these compounds exhibit substantial SOT, primarily driven by the colossal current-induced orbital response of Eu f-electrons. Additionally, the resulting orbital torques can generate strong in-plane currents of orbital angular momentum with non-trivial orbital polarization directions. These results establish f-based 2D materials as a highly promising platform for in-plane orbital pumping and SOT applications, positioning f-based 2D materials as a promising platform for next-generation orbitronic and spintronic technologies with 2D materials.