北京师范大学学报（自然科学版）2023，Vol.59Issue(6)：844-851,8.DOI:10.12202/j.0476-0301.2023072
磁性外尔半金属的发现
Discovery of magnetic Weyl semimetal
摘要
Abstract
Weyl semimetal is a novel topological quantum state with emergent relativistic Weyl fermions of opposite chiralities and surface Fermi arcs in the electronic structure.Such distinct electronic structure leads to many exotic physical properties,such as chiral anomaly and quantum oscillations.Based on the symmetry broken,Weyl semimetal can be classified as inversion symmetry breaking non-magnetic Weyl semimetal,and time-reversal symmetry breaking magnetic Weyl semimetal.The latter is very sensitive to magnetic structure so that the manipulation of topological phase transition and physical properties can be induced by external magnetic or electric field.This has great potentials for applications in the field of spintronics.The kagome ferromagnet Co3Sn2S2 is the first experimentally discovered magnetic Weyl semimetal.Its discovery is reviewed here,with emphasis on transport properties,theoretical calculations and measurements of electronic structures.The future of the study of the magnetic semimetal is discussed.关键词
磁性外尔半金属/费米弧/自旋轨道耦合/拓扑相变/电子结构/角分辨光电子能谱Key words
magnetic Weyl semimetal/Fermi arc/spin-orbit coupling/topological phase transtion/electronic structure/angle-resolved photoemission spectroscopy分类
数理科学引用本文复制引用
刘德发..磁性外尔半金属的发现[J].北京师范大学学报（自然科学版）,2023,59(6):844-851,8.基金项目
国家高层次人才青年项目 （）
中央高校基本科研业务费专项资金资助 （）
