arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2106.00709cond-mat.mtrl-scicond-mat.mes-hall
收藏

从晶体对称性发现拓扑材料

Topological Materials Discovery from Crystal Symmetry

Benjamin J. Wieder, Barry Bradlyn, Jennifer Cano, Zhijun Wang, Maia G. Vergniory, Luis Elcoro, Alexey A. Soluyanov, Claudia Felser, Titus Neupert, Nicolas Regna… 展开作者

Benjamin J. Wieder, Barry Bradlyn, Jennifer Cano, Zhijun Wang, Maia G. Vergniory, Luis Elcoro, Alexey A. Soluyanov, Claudia Felser, Titus Neupert, Nicolas Regnault, B. Andrei Bernevig

摘要:

拓扑材料的发现在过去的15年中以快速的速度发展,在第一个拓扑拓扑绝缘体(TI),拓扑晶体绝缘体(TCI)和3D拓扑半金属(TSM)的识别之后。最近,通过完整的分析,允许的能带结构-包括拓扑量子化学(TQC)的理论-研究人员已经确定了晶体对称性增强威尔逊环和完整的基于拓扑相的指标,导致发现更高阶的TCI和TSM。TQC和相关方法在高通量材料发现中的最新应用已经揭示,超过一半的已知化学计量的、固态的、异质结材料在费米能级上是拓扑的,超过85%的已知化学计量的材料具有能量隔离的拓扑带,并且在已知材料中的能量隔离带中的略低于$2/3$的具有TI或TCI的稳定拓扑。在这篇评论中,我们调查拓扑电子材料发现在结晶固体从第一个2D和3D TI的预测最近推出的方法,促进了大规模的搜索拓扑材料。我们还讨论了未来的场地,为识别和操纵的固态拓扑相,包括电荷密度波化合物,磁性材料,和二维少层设备。

英文摘要:

Topological materials discovery has evolved at a rapid pace over the past 15 years following the identification of the first nonmagnetic topological insulators (TIs), topological crystalline insulators (TCIs), and 3D topological semimetals (TSMs). Most recently, through complete analyses of symmetry-allowed band structures - including the theory of Topological Quantum Chemistry (TQC) - researchers have determined crystal-symmetry-enhanced Wilson-loop and complete symmetry-based indicators for nonmagnetic topological phases, leading to the discovery of higher-order TCIs and TSMs. The recent application of TQC and related methods to high-throughput materials discovery has revealed that over half of all of the known stoichiometric, solid-state, nonmagnetic materials are topological at the Fermi level, over 85% of the known stoichiometric materials host energetically isolated topological bands, and that just under $2/3$ of the energetically isolated bands in known materials carry the stable topology of a TI or TCI. In this Review, we survey topological electronic materials discovery in nonmagnetic crystalline solids from the prediction of the first 2D and 3D TIs to the recently introduced methods that have facilitated large-scale searches for topological materials. We also discuss future venues for the identification and manipulation of solid-state topological phases, including charge-density-wave compounds, magnetic materials, and 2D few-layer devices.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑