Experimental Evidence of Néel-Order-Driven Magneto-optical Kerr Effect in an Altermagnetic InsulatorRemoveHaolin Pan, Rui-Chun Xiao, Jiahao Han, Hongxing Zhu, Junxue Li, Qian Niu, Yang Gao, and Dazhi HouPhys. Rev. Lett. 136, 036701 (2026)
