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Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2

Authors :
Franziska Martin
Kyujoon Lee
Maurice Schmitt
Anna Liedtke
Aga Shahee
Haakon Thømt Simensen
Tanja Scholz
Tom G. Saunderson
Dongwook Go
Martin Gradhand
Yuriy Mokrousov
Thibaud Denneulin
András Kovács
Bettina Lotsch
Arne Brataas
Mathias Kläui
Source :
Martin, F, Lee, K, Schmitt, M, Liedtke, A, Shahee, A, Simensen, H T, Scholz, T, Saunderson, T G, Go, D, Gradhand, M, Mokrousov, Y, Denneulin, T, Kovács, A, Lotsch, B, Brataas, A & Kläui, M 2022, ' Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2 ', Materials Research Letters, vol. 11, no. 1, pp. 84-80 . https://doi.org/10.1080/21663831.2022.2119108, Materials Research Letters 11(1), 84-89 (2023). doi:10.1080/21663831.2022.2119108
Publication Year :
2022

Abstract

The recent emergence of magnetic van der Waals materials allows for the investigation of current induced magnetization manipulation in two dimensional materials. Uniquely, Fe3GeTe2 has a crystalline structure that allows for the presence of bulk spin-orbit torques (SOTs), that we quantify in a Fe3GeTe2 flake. From the symmetry of the measured torques, we identify the current induced effective fields using harmonic analysis and find dominant bulk SOTs, which arise from the symmetry in the crystal structure. Our results show that Fe3GeTe2 uniquely can exhibit bulk SOTs in addition to the conventional interfacial SOTs enabling magnetization manipulation even in thick single layers without the need for complex multilayer engineering.<br />Comment: 19 pages 4 figures

Details

Language :
English
Database :
OpenAIRE
Journal :
Martin, F, Lee, K, Schmitt, M, Liedtke, A, Shahee, A, Simensen, H T, Scholz, T, Saunderson, T G, Go, D, Gradhand, M, Mokrousov, Y, Denneulin, T, Kovács, A, Lotsch, B, Brataas, A & Kläui, M 2022, ' Strong bulk spin-orbit torques quantified in the van der Waals ferromagnet Fe3GeTe2 ', Materials Research Letters, vol. 11, no. 1, pp. 84-80 . https://doi.org/10.1080/21663831.2022.2119108, Materials Research Letters 11(1), 84-89 (2023). doi:10.1080/21663831.2022.2119108
Accession number :
edsair.doi.dedup.....c28ec5d84da7788e66b1b949ae9a4460