Van der Waals Magnetic Electrode Transfer for Two-Dimensional Spintronic Devices

• DOI: 10.1021/acs.nanolett.4c01885
• Publication Date: 2024-05-10T19:42:53Z
• Authors: Zhongzhong Luo; Zhihao Yu; Xiangqian Lu; Wei Niu; Yao Yu; Yu Yao; Fuguo Tian; Chee Leong Tan; Huabin Sun; Li Gao; Wei Qin; Yong Xu; Qiang Zhao; Xiang-Xiang Song
• Keywords: Spin valve

Two-dimensional (2D) materials are promising candidates for spintronic applications. Maintaining their atomically smooth interfaces during integration of ferromagnetic (FM) electrodes is crucial since conventional metal deposition tends to induce defects at the interfaces. Meanwhile, difficulties in picking up FM metals with strong adhesion and achieving conductance match between spin transport channels make it challenging fabricate high-quality 2D devices using transfer techniques. Here, we report a solvent-free magnetic electrode technique that employs graphene layer assist metals. It also serves as part after optimizing injection, which enables realization valves excellent performance based on various materials. In addition two-terminal devices, demonstrate applicable four-terminal nonlocal geometry. Our results provide future realizing applications developed technique.