Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
Materials Science and Engineering Program
KAUST Grant NumberOSR-2017-CRG6-3427
Permanent link to this recordhttp://hdl.handle.net/10754/656678
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AbstractThe recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for spintronic devices with exceptional properties. However, to use 2D vdW magnets for building spintronic nanodevices such as magnetic memories, key challenges remain in terms of effectively switching the magnetization from one state to the other electrically. Here, we devise a bilayer structure of Fe3GeTe2/Pt, in which the magnetization of few-layered Fe3GeTe2 can be effectively switched by the spin-orbit torques (SOTs) originated from the current flowing in the Pt layer. The effective magnetic fields corresponding to the SOTs are further quantitatively characterized using harmonic measurements. Our demonstration of the SOT-driven magnetization switching in a 2D vdW magnet could pave the way for implementing low-dimensional materials in the next-generation spintronic applications.
CitationWang, X., Tang, J., Xia, X., He, C., Zhang, J., Liu, Y., … Han, X. (2019). Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2. Science Advances, 5(8), eaaw8904. doi:10.1126/sciadv.aaw8904
SponsorsG.Y. and X.H. thank the National Key Research and Development Program of China (grant nos. 2017YFA0206200, 2018YFB0407600, 2016YFA0300802, and 2017YFA0206302), the National Natural Science Foundation of China (NSFC; grant nos.11874409, 11804380, 11434014, and 51831012), the NSFC–Science Foundation Ireland (SFI) Partnership Programme (grant no. 51861135104), and the 1000 Youth Talents Program for financial support. G.Z. thanks NSFC (grant nos. 61734001, 11834017, and 51572289), the Strategic Priority Research Program (B) of CAS (grant no. XDB30000000), the Key Research Program of Frontier Sciences of CAS (grant no. QYZDB-SSW-SLH004), the National Key R&D Program of China (grant no. 2016YFA0300904) for financial support. Y.L. acknowledges support from the Institute of Physics, Chinese Academy of Sciences through the International Young Scientist Fellowship (grant no. 2018001). J.Z. and Xixiang Zhang acknowledge the financial support from the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the award no. OSR-2017-CRG6-3427. G.Y. and Y.L. acknowledge fruitful discussion with J. Yu and J. Zang.
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