Comprehensive scan for nonmagnetic Weyl semimetals with nonlinear optical response  

作　　者：Qiunan Xu Yang Zhang Klaus Koepernik Wujun Shi Jeroen van den Brink Claudia Felser Yan Sun 

机构地区：[1]Max Planck Institute for Chemical Physics of Solids,01187 Dresden,Germany [2]Leibniz Institute for Solid State and Materials Research,01069 Dresden,Germany [3]School of Physical Science and Technology,ShanghaiTech University,Shanghai 200031,China [4]Center for Nanoscale Systems,Faculty of Arts and Sciences,Harvard University,11 Oxford Street,LISE 308,Cambridge,MA 02138,USA

出　　处：《npj Computational Materials》2020年第1期1398-1404,共7页计算材料学（英文）

基　　金：This work was financially supported by the ERC Advanced Grant No.291472‘Idea Heusler’,ERC Advanced Grant No.742068‘TOPMAT’;We also acknowledge funding by the DFG through SFB 1143(project ID 247310070);the Würzburg-Dresden Cluster of Excellence on Complexity and Topology in Quantum Matter-ct.qmat(EXC 2147,project ID 39085490).

摘　　要：First-principles calculations have recently been used to develop comprehensive databases of nonmagnetic topological materials that are protected by time-reversal or crystalline symmetry.However,owing to the low symmetry requirement of Weyl points,a symmetry-based approach to identifying topological states cannot be applied to Weyl semimetals(WSMs).To date,WSMs with Weyl points in arbitrary positions are absent from the well-known databases.

关 键 词：SYMMETRY TOPOLOGICAL metals 

分 类 号：O17[理学—数学]