二维磁性拓扑材料:基础理论、材料实现及应用前景

Magnetic topological materials in two-dimensional:theory,material realization and application prospects

在二维材料的研究中,二维磁性和非平庸拓扑能带成为研究焦点.最近,涌现出一类新型材料体系,被称为二维磁性拓扑材料.它们巧妙地将二维磁性与非平庸拓扑特性相结合,引起人们的广泛研究兴趣.特别是在二维尺度上已推出几种新型磁性拓扑态,如反铁磁拓扑绝缘体/半金属、磁性二阶拓扑绝缘体等.本综述全面分析了目前二维磁性拓扑材料领域的研究进展,包括各类二维磁性拓扑绝缘体、二维磁性拓扑半金属以及完全自旋极化二维拓扑半金属等;系统性地剖析了基础拓扑理论、发展历程、材料实现以及潜在应用.最后,讨论了该领域所面临的挑战与前景,强调了未来在这一引人注目的领域取得更大突破的可能途径.

Two-dimensional(2D)magnetism and nontrivial band topology are both areas of research that are currently receiving significant attention in the study of 2D materials.Recently,a novel class of materials has emerged,known as 2D magnetic topological materials,which elegantly combine 2D magnetism and nontrivial topology.This field has garnered increasing interest,especially due to the emergence of several novel magnetic topological states that have been generalized into the 2D scale.These states include antiferromagnetic topological insulators/semimetals,second-order topological insulators,and topological half-metals.Despite the rapid advancements in this emerging research field in recent years,there have been few comprehensive summaries of the state-of-the-art progress.Therefore,this review aims to provide a thorough analysis of current progress on 2D magnetic topological materials.We cover various 2D magnetic topological insulators,a range of 2D magnetic topological semimetals,and the novel 2D topological half-metals,systematically analyzing the basic topological theory,the course of development,the material realization,and potential applications.Finally,we discuss the challenges and prospects for 2D magnetic topological materials,highlighting the potential for future breakthroughs in this exciting field.