Berlin 2024 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 5: 2D Materials and their Heterostructures II: Graphene and Graphene Containing Heterostructures
DS 5.7: Vortrag
Dienstag, 19. März 2024, 11:15–11:30, A 053
Spin-Orbit Torque in Graphene / 1T-TaS2 heterostructure — •Maedeh Rassekh1, Marko Milivojević2,3, and Martin Gmitra1,4 — 1Institute of Physics, Pavol Jozef Šafárik University in Košice, Košice, Slovakia — 2Institute of Physics, Pavol Jozef Šafárik University in Košice, Košice, Slovakia — 3Faculty of Physics, University of Belgrade, Belgrade, Serbia — 4Institute of Experimental Physics, Slovak Academy of Sciences, Košice, Slovakia
Spin-orbit torque (SOT) plays a critical role in enabling low-power and high-speed operation. In this study, we focus on investigating SOT acting on proximity-induced magnetization in graphene for the charge density wave ferromagnetic phase of 1T-TaS2. Our findings reveal that the orientation and strength of the induced magnetization are influenced by the in-plane magnetization within the 1T-TaS2 layer. Notably, alterations in the in-plane magnetization orientation within the 1T-TaS2 layer led to the switching of charge-to-spin conversion mechanisms between the spin Hall effect and the Rashba-Edelstein effect. Furthermore, we extend our investigation to explore the impact of doping, particularly focusing on the vicinity of the Dirac point and hole-doped graphene. Our results highlight the importance of Fermi energy tuning for customizing spin transport properties in graphene/1T-TaS2 heterostructures, which hold significant potential for future technological advancements. This work was supported by the APVV-SK-CZ-RD-21-0114, SASPRO 2 No. 945478, FLAG ERA JTC 2021 2DSOTECH, and IMPULZ IM-2021-42 projects.