Observation of an abnormally large bandgap in monolayer 1T′-WS2 grown on SrTiO3(001). - Tian, Qichao; Wang, Ziyu; Zhao, Wei-Min; Xu, Yong-Jie; Liu, Gan; Wang, Li; Wang, Pengdong; Dou, Li-Guo; Chen, Wang; Jin, Shaoen; Zong, Junyu; Meng, Qinghao; et al. (Applied Physics Letters, 2023)