Characterizing G-type antiferromagnetism quantitatively with optical second harmonic generation - Shuai Xu; Cheng Ma; Kui-juan Jin; Qinghua Zhang; Sisi Huang; Yiru Wang; Xu He; Jiesu Wang; Donggang Xie; Qiulin Zhang; Er-Jia Guo; Chen Ge; et al. (Light: Science & Applications, 2025)