Spin torque on the surface of graphene in the presence of spin orbit splitting
Source abstract
Abstract
We study theoretically the spin transfer torque of a ferromagnetic layer coupled to (deposited onto) a graphene surface in the presence of the Rashba spin orbit coupling (RSOC). We show that the RSOC induces an effective magnetic field, which will result in the spin precession of conduction electrons. We derive correspondingly the generalized Landau-Lifshitz-Gilbert (LLG) equation, which describes the precessional motion of local magnetization under the influence of the spin orbit effect. Our theoretical estimate indicates that the spin orbit spin torque may have significant effect on the magnetization dynamics of the ferromagnetic layer coupled to the graphene surface.
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Research context
OpenAlex topics: Graphene research and applications · Quantum and electron transport phenomena · Topological Materials and Phenomena
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National University of Singapore 1 Computational Nanoelectronics and Nano-device Laboratory, Electrical and Computer Engineering Department, , 4 Engineering Drive 3, Singapore 117576, Singapore
National University of Singapore 2 Information Storage Materials Laboratory, Electrical and Computer Engineering Department, , 4 Engineering Drive 3, Singapore 117576, Singapore
Data Storage Institute 3 , A*STAR (Agency for Science, Technology and Research), DSI Building, 5 Engineering Drive 1, Singapore 117608, Singapore
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