Journal Article Topological Spin Excitations in Honeycomb Ferromagnet CrI3 DOI Link https://doi.org/http://doi.org/10.1103/PhysRevX.8.041028 Authors Chen L., Chung J.H., Gao B., Chen T., Stone M.B., Kolesnikov A.I., Huang Q.Z., Dai P.C. Publication Physical Review X Pages 041028 Volume 8 Issue Number 4 Instruments SEQUOIA | BL-17 | SNS