Weyl monopoles dance with the spin waves  

作　　者：BingHai Yan 

机构地区：[1]Department of Condensed Matter Physics,Weizmann Institute of Science,Rehovot 760001,Israel

出　　处：《Science China(Physics,Mechanics & Astronomy)》2021年第1期10-11,共2页中国科学：物理学、力学、天文学（英文版）

摘　　要：In a Weyl semimetal(WSM),the conduction and valence bands cross each other near the Fermi energy,and the crossing points,called Weyl points,exhibit a monopole-like distribution of the Berry curvature.The Berry curvature is a fictitious magnetic field in the momentum-space and induces the anomalous velocity to the real-space electron motion.Therefore,Weyl monopoles play essential roles in the charge transport,for example,the anomalous Hall effect(AHE).The anomalous Hall conductivity(AHC)is nearly proportional to the distance between the Weyl point pairs with opposite chirality.The magnetic order and spin structure sensitively modify Weyl point positions and energies.

关 键 词：ARXIV NAT Weyl monopoles dance with the spin waves 

分 类 号：O469[理学—凝聚态物理]