NatureOptical switching of a moiré Chern ferromagnetXiangbin CaiHaiyang PanYuzhu WangAbdullah RasmitaShunshun YangYan ZhaoWei WangRuihuan DuanRuihua HeKenji WatanabeTakashi TaniguchiZheng LiuJesús Zúñiga-PérezBo YangWeibo Gao2026-01-28Full textDOI https://doi.org/10.1038/s41586-025-10048-4