基于对称性指标预测拓扑材料  

Efficient topological materials discovery using symmetry indicators

作　　者：唐峰 万贤纲[1,2] TANG Feng;WAN Xian-Gang(National Laboratory of Solid State Microstructures,School of Physics, Nanjing University, Nanjing 210093,China;Collaborative Inn ovation Center of Adva need Microstructures, Nanjing Un iversity, Nanjing 210093,China)

机构地区：[1]南京大学物理学院固体微结构物理国家重点实验室,南京210093 [2]南京大学人工微结构科学与技术协同创新中心,南京210093

出　　处：《物理》2019年第6期341-356,共16页Physics

基　　金：国家重大研发计划(批准号:2017YFA0303203;2018YFA0305704);国家自然科学基金(批准号:11525417;11834006;51721001;11790311);南京大学卓越研究计划资助项目

摘　　要：拓扑材料是凝聚态物理和材料科学领域的前沿课题。随着理论方法的发展,最近人们在大规模筛选拓扑材料方向取得了多个进展。文章着重介绍作者基于对称性指标理论发展的根据在原子绝缘体基组展开系数高效判断材料拓扑性质的方法,以及相关的典型材料。人们预言的数千个新的拓扑体系为进一步深入研究拓扑材料提供了基础。Over the past decade, topological materials--in which the topology of electron bands in the bulk material leads to robust, unconventional surface states and electromagnetism-- have attracted much attention. With the development of the theoretical methods, recently there have been many advancements on searching for topological materials in a large scale. Very recently, based on symmetry-indicator theory and using so-called atomic insulator basis, we develop a theoretical method for systematically discovering topological materials. In this paper, we introduce our algorithm, and we also discuss several typical topological materials. The predicted thousands of topological materials provide a platform for further study on topological materials next step.

关 键 词：拓扑量子体系 空间群及能带不可约表示 对称性指标理论 原子绝缘体基组 拓扑材料判定新方法 

分 类 号：O469[理学—凝聚态物理] TB30[理学—电子物理学]