Janus monolayers of magnetic transition metal dichalcogenides as an all-in-one platform for spin-orbit torque
Type
ArticleAuthors
Smaili, Idris
Laref, Slimane
Garcia, Jose H.

Schwingenschlögl, Udo

Roche, Stephan

Manchon, Aurelien

KAUST Department
Electrical and Computer Engineering ProgramComputer, Electrical and Mathematical Science and Engineering (CEMSE) Division
Physical Science and Engineering (PSE) Division
Material Science and Engineering Program
KAUST Grant Number
OSR-2018-CRG7-3717Date
2021-09-15Preprint Posting Date
2020-07-15Submitted Date
2020-06-20Permanent link to this record
http://hdl.handle.net/10754/664434
Metadata
Show full item recordAbstract
We theoretically predict that vanadium-based Janus dichalcogenide monolayers constitute an ideal platform for spin-orbit torque memories. Using first-principles calculations, we demonstrate that magnetic exchange and magnetic anisotropy energies are higher for heavier chalcogen atoms, while the broken inversion symmetry in the Janus form leads to the emergence of Rashba-like spin-orbit coupling. The spin-orbit torque efficiency is evaluated using optimized quantum transport methodology and found to be comparable to heavy nonmagnetic metals. The coexistence of magnetism and spin-orbit coupling in such materials with tunable Fermi-level opens new possibilities for monitoring magnetization dynamics in the perspective of nonvolatile magnetic random access memories.Citation
Smaili, I., Laref, S., Garcia, J. H., Schwingenschlögl, U., Roche, S., & Manchon, A. (2021). Janus monolayers of magnetic transition metal dichalcogenides as an all-in-one platform for spin-orbit torque. Physical Review B, 104(10). doi:10.1103/physrevb.104.104415Sponsors
The authors were supported by King Abdullah University of Science and Technology (KAUST) through Award No. OSR-2018-CRG7-3717 from the Office of Sponsored Research (OSR). For computer time, this research used the resources of the Supercomputing Laboratory at KAUST. ICN2 authors were supported by the European Union Horizon 2020 research and innovation programme under Grant No. 881603 (Graphene Flagship), by the CERCA Programme/Generalitat de Catalunya, and by the Severo Ochoa program from Spanish MINECO (Grants No. SEV-2017-0706 and No. MAT2016-75952-R).Publisher
American Physical Society (APS)Journal
Physical Review BarXiv
2007.07579Additional Links
https://link.aps.org/doi/10.1103/PhysRevB.104.104415ae974a485f413a2113503eed53cd6c53
10.1103/physrevb.104.104415