Hu Shuai, Qiu Xuepeng, Pan Chang, Zhu Wei, Guo Yandong, Shao Ding-Fu, Yang Yumeng, Zhang Delin, Jiang Yong
Institute of Quantum Materials and Devices, School of Electronic and Information Engineering; State Key Laboratory of Separation Membrane and Membrane Processes, Tiangong University, Tianjin 300387, People's Republic of China.
Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and School of Physics Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China.
J Phys Condens Matter. 2024 Mar 27;36(25). doi: 10.1088/1361-648X/ad3270.
Achieving all electrical control of magnetism without assistance of an external magnetic field has been highly pursued for spintronic applications. In recent years, the manipulation of magnetic states through spin-orbit torque (SOT) has emerged as a promising avenue for realizing energy-efficient spintronic memory and logic devices. Here, we provide a review of the rapidly evolving research frontiers in all electrical control of magnetization by SOT. The first part introduces the SOT mechanisms and SOT devices with different configurations. In the second part, the developments in all electrical SOT control of magnetization enabled by spin current engineering are introduced, which include the approaches of lateral symmetry breaking, crystalline structure engineering of spin source material, antiferromagnetic order and interface-generated spin current. The third part introduces all electrical SOT switching enabled by magnetization engineering of the ferromagnet, such as the interface/interlayer exchange coupling and tuning of anisotropy or magnetization. At last, we provide a summary and future perspectives for all electrical control of magnetization by SOT.
在自旋电子学应用中，人们一直高度追求在没有外部磁场辅助的情况下实现对磁性的全电控制。近年来，通过自旋轨道矩（SOT）操纵磁态已成为实现节能自旋电子存储和逻辑器件的一条有前途的途径。在此，我们对通过SOT实现磁化全电控制这一快速发展的研究前沿进行综述。第一部分介绍了SOT机制和具有不同配置的SOT器件。第二部分介绍了通过自旋电流工程实现的磁化全电SOT控制的进展，包括横向对称性破缺、自旋源材料的晶体结构工程、反铁磁序和界面产生的自旋电流等方法。第三部分介绍了通过铁磁体的磁化工程实现的全电SOT开关，如界面/层间交换耦合以及各向异性或磁化的调节。最后，我们对通过SOT实现磁化全电控制进行了总结并展望了未来。
