Room‐Temperature van der Waals Ferromagnet Switching by Spin‐Orbit Torques
Source abstract
Abstract
Abstract The emerging wide varieties of the van der Waals (vdW) magnets with atomically thin and smooth interfaces hold great promise for next‐generation spintronic devices. However, due to the lower Curie temperature of the vdW ferromagnets than room temperature, electrically manipulating its magnetization at room temperature has not been realized. In this work, it is demonstrated that the perpendicular magnetization of the vdW ferromagnet Fe3GaTe2 can be effectively switched at room temperature in the Fe3GaTe2/Pt bilayer by spin–orbit torques (SOTs) with a relatively low current density of 1.3 × 107A cm−2. Moreover, the high SOT efficiency of ξDL ≈ 0.28 is quantitatively determined by harmonic measurements, which is higher than those in Pt‐based heavy metal/conventional ferromagnet devices. The findings of room‐temperature vdW ferromagnet switching by SOTs provide a significant basis for the development of vdW‐ferromagnet‐based spintronic applications.
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Research context
OpenAlex topics: Magnetic properties of thin films · Quantum and electron transport phenomena · Advanced Memory and Neural Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China
Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
Center for Joining and Electronic Packaging State Key Laboratory of Material Processing and Die & Mold Technology School of Materials Science and Engineering Huazhong University of Science and Technology Wuhan 430074 China
Wuhan National High Magnetic Field Center Huazhong University of Science and Technology Wuhan 430074 China
School of Electrical and Electronic Engineering Tiangong University Tianjin 300387 China
Funding
National Key Research and Development Program of China · National Natural Science Foundation of China
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