Twinning of domains and spin anisotropy in K5Fe4Ag6Te10RemoveJiayu Guo, Hengyang Zhong, Dongsheng Yuan, Xuejuan Gui, Youzhe Chen, Nathan Giles-Donovan, Naomi Kawamura, Masaaki Matsuda, Yaohua Liu, Feng Ye, Rongyan Chen, Robert J. Birgeneau, Xingye Lu, Jincheng Wang, and Yu SongPhys. Rev. B 114, 175116 (2026)