Research progress of spin orbit torque of two-dimensional magnetic materials

The rapid development of information technology has put forward higher requirements for the performance of information processing and storage devices. At the same time, with the continuous reduction of device size, traditional semiconductor devices based on electron charge properties face the problems and challenges of thermal dissipation and quantum size effect, and semiconductor technology has entered the post-molar era. Unlike traditional charge-based electronic devices, spin-based non-volatile spintronic devices not only have high integrated density, read and write speed and read and write time, but also can effectively avoid heat dissipation, establishing a new technical platform for developing the information storage, processing and communication. In recent years, two-dimensional materials have attracted a lot of attention due to their unique band structures and rich physical properties. Two-dimensional magnetic materials have shown great research and application potential in the field of spintronics. Compared with traditional block materials, the two-dimensional materials can provide great opportunities for exploring novel physical effects and ultra-low-power devices due to their atomic thickness, ultra-clean interface and flexible stacking. At the same time, with the rise of topological materials (TMs), their topological protected band structures, diversified crystal structures and symmetries, strong spin-orbit coupling and adjustable electrical conductivity provide an ideal physical research platform for studying spintronics. In this paper, we first introduce the common methods of preparing two-dimensional materials, then focus on the research progress of two-dimensional magnetic materials in the field of spin-orbit electronics, and finally look forward to the research challenges in this field. In the future, with continuous in-depth research on the preparation, physical properties and device applications of two-dimensional magnetic materials, two-dimensional magnetic materials will show more extensive research prospects and application value in the field of spintronics. Two-dimensional magnetic materials will provide more material systems for spintronics development. © 2024 Institute of Physics, Chinese Academy of Sciences. All rights reserved.