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 

作者机构：Max Planck Institute for Chemical Physics of Solids01187 DresdenGermany Leibniz Institute for Solid State and Materials Research01069 DresdenGermany School of Physical Science and TechnologyShanghaiTech UniversityShanghai 200031China Center for Nanoscale SystemsFaculty of Arts and SciencesHarvard University11 Oxford StreetLISE 308CambridgeMA 02138USA 

出 版 物：《npj Computational Materials》 (计算材料学（英文）)

年 卷 期：2020年第6卷第1期

页      面：1398-1404页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

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) 

主　　题：symmetry topological metals 

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 ***,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.