RT Journal T1 Determination of the Range of Magnetic Interactions from the Relations between Magnon Eigenvalues at High-Symmetry $k$ Points A1 Di Wang, Jihai Yu, Feng Tang, Yuan Li, and Xiangang Wan PB Chin. Phys. Lett. FD 2021-10-11 YR 2021 JF Chinese Physics Letters JO Chin. Phys. Lett. VO 38 IS 11 SP 117101DO 10.1088/0256-307X/38/11/117101 K1 LK {https://cpl.iphy.ac.cn/EN/article/article_116038.shtml}