Magnetic Field Effect on Topological Spin Excitations in

CrI3

Lebing Chen, Jae-Ho Chung, ∗ Matthew B. Stone, Alexander I. Kolesnikov, Barry Winn, V. Ovidiu Garlea, Douglas L. Abernathy, Bin Gao, Mathias Augustin, Elton J. G. Santos, 5, † and Pengcheng Dai ‡ Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA Department of Physics, Korea University, Seoul 02841, Korea Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA Institute for Condensed Matter Physics and Complex Systems, School of Physics and Astronomy, The University of Edinburgh, EH9 3FD, UK Higgs Centre for Theoretical Physics, The University of Edinburgh, EH9 3FD, UK (Dated: Submitted for review on Feb. 18, 2021, Uploaded on ArXiv on June 11, 2021)