Zhang Xiaoqian, Li Peng, Bian Guang
Key Laboratory of Quantum Materials and Devices of Ministry of Education, School of Physics, Southeast University, Nanjing 211189, People's Republic of China.
School of Microelectronics, University of Science and Technology of China, Hefei 230026, People's Republic of China.
Rep Prog Phys. 2025 Aug 4;88(8). doi: 10.1088/1361-6633/adef66.
Two-dimensional (2D) magnetic materials exhibit a wide array of fascinating magnetic properties, making them highly attractive for spintronic applications such as high-density nonvolatile memories and multifunctional nano-devices. Recently, chromium tellurides (CrTe) have attracted significant attention due to their metallic band structure, strong magnetic anisotropy, and tunable exchange couplings. The unique tunability of magnetic properties in a metallic ground state makes CrTea promising platform for generating, controlling, and manipulating spin currents. This review summarizes recent advances in large-scale 2D magnetic CrTeepitaxial thin films, emphasizing synthesis techniques that produce high-quality, large-area films. It explores the role of self-intercalation and heterostructure engineering in tailoring the magnetic and structural properties of these materials. We also review the band structure, magnetic characteristics, and spin dynamics of CrTe, with a particular emphasis on thickness-dependent band dispersion, magnetic anisotropy, and the emergence of skyrmions. Moreover, this review highlights the applications of CrTein spintronics, covering the anomalous Hall effect, topological Hall effect, spin valves, and spin-orbit torque devices. The goal of this review is to furnish readers with a comprehensive overview of the intriguing properties of CrTecompounds and to inspire further innovative studies on the vast potential of 2D magnetic materials for next-generation spintronic and quantum devices.
二维（2D）磁性材料展现出一系列迷人的磁特性，这使得它们在诸如高密度非易失性存储器和多功能纳米器件等自旋电子学应用中极具吸引力。最近，碲化铬（CrTe）因其金属能带结构、强磁各向异性和可调谐的交换耦合而备受关注。金属基态下磁特性的独特可调性使CrTe成为产生、控制和操纵自旋电流的一个有前景的平台。本综述总结了大规模二维磁性CrTe外延薄膜的最新进展，重点强调了能够制备高质量、大面积薄膜的合成技术。它探讨了自插层和异质结构工程在调整这些材料的磁性能和结构性能方面的作用。我们还综述了CrTe的能带结构、磁特性和自旋动力学，特别强调了与厚度相关的能带色散、磁各向异性以及斯格明子的出现。此外，本综述突出了CrTe在自旋电子学中的应用，涵盖反常霍尔效应、拓扑霍尔效应、自旋阀和自旋轨道矩器件。本综述的目的是为读者提供关于CrTe化合物有趣特性的全面概述，并激发对二维磁性材料在下一代自旋电子学和量子器件方面巨大潜力的进一步创新性研究。
