Zhang Lixin, Chen Hongxin, Ren Junfeng, Yuan Xiaobo
School of Physics and Electronics, Shandong Normal University, Jinan 250358, China.
Shandong Provincial Engineering and Technical Center of Light Manipulations and Institute of Materials and Clean Energy, Shandong Normal University, Jinan 250358, China.
iScience. 2024 Dec 18;28(1):111622. doi: 10.1016/j.isci.2024.111622. eCollection 2025 Jan 17.
The quantum anomalous Hall effect (QAHE) demonstrates the potential for achieving quantized Hall resistance without the need for an external magnetic field, making it highly promising for reducing energy loss in electronic devices. Its realization and research rely heavily on precise first-principles calculations, which are essential for analyzing the electronic structures and topological properties of novel two-dimensional (2D) materials. This review article explores the theoretical progress of QAHE in 2D hexagonal monolayers with strong spin-orbit coupling and internal magnetic ordering. We summarize current strategies and methods for realizing QAHE in these monolayers, focusing on material selection and fine-tuning to achieve stable QAHE at room temperature. We hope that this review will provide new perspectives for theoretical studies and enable researchers to more accurately predict materials with superior QAHE properties. Meanwhile, we anticipate that these theoretical advancements will further drive breakthroughs in experimental studies and promote its broader application in low-power electronic devices and quantum information technology.
量子反常霍尔效应（QAHE）展示了在无需外部磁场的情况下实现量子化霍尔电阻的潜力，这使其在降低电子设备能量损耗方面极具前景。其实现和研究在很大程度上依赖于精确的第一性原理计算，这对于分析新型二维（2D）材料的电子结构和拓扑性质至关重要。本文综述探讨了具有强自旋轨道耦合和内禀磁有序的二维六角形单层中量子反常霍尔效应的理论进展。我们总结了目前在这些单层中实现量子反常霍尔效应的策略和方法，重点关注材料选择和微调，以在室温下实现稳定的量子反常霍尔效应。我们希望这篇综述能为理论研究提供新的视角，并使研究人员能够更准确地预测具有优异量子反常霍尔效应特性的材料。同时，我们预计这些理论进展将进一步推动实验研究取得突破，并促进其在低功耗电子设备和量子信息技术中的更广泛应用。
