Current-driven magnetization switching in a van der Waals ferromagnet Fe3GeTe2.

Xiao Wang, Jian Tang, Xiuxin Xia, Congli He, Junwei Zhang, Yizhou Liu, Caihua Wan, Chi Fang, Chenyang Guo, Wenlong Yang, Yao Guang, Xiaomin Zhang, Hongjun Xu, Jinwu Wei, Mengzhou Liao, Xiaobo Lu, Jiafeng Feng, Xiaoxi Li, Yong Peng, Hongxiang WeiRong Yang, Dongxia Shi, Xixiang Zhang, Zheng Han, Zhidong Zhang, Guangyu Zhang, Guoqiang Yu, Xiufeng Han

Research output: Contribution to journalArticlepeer-review

237 Scopus citations

Abstract

The recent discovery of ferromagnetism in two-dimensional (2D) van der Waals (vdW) materials holds promises for novel spintronic devices with exceptional performances. However, in order to utilize 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.
Original languageEnglish (US)
Pages (from-to)eaaw8904
JournalScience advances
Volume5
Issue number8
DOIs
StatePublished - Aug 23 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): OSR-2017-CRG6-3427
Acknowledgements: G.Y. and X.H. thank the finical supports from the National Key Research and Development Program of China (Grant No. 2017YFA0206200, 2018YFB0407600, 2016YFA0300802, 2017YFA0206302), the National Natural Science Foundation of China (NSFC, Grants No.11874409, 11804380, 11434014, 51831012), the NSFC-Science Foundation Ireland (SFI) Partnership Programme (Grant No.51861135104), and 1000 Youth Talents Program. G.Z. thanks the finical supports from 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). Y.L. acknowledges support from the Institute of Physics, Chinese Academy of Sciences through the International Young Scientist Fellowship (Grant No. 2018001). J.W.Z. and X.X.Z. 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.

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