Author(s): Shuang Wu, Bing Liu, Cheng Shen, Si Li, Xiaochun Huang, Xiaobo Lu, Peng Chen, Guole Wang, Duoming Wang, Mengzhou Liao, Jing Zhang, Tingting Zhang, Shuopei Wang, Wei Yang, Rong Yang, Dongxia Shi, Kenji Watanabe, Takashi Taniguchi, Yugui Yao, Weihua Wang, and Guangyu ZhangThe determination of the electronic structure by edge geometry is unique to graphene. In theory, an evanescent nonchiral edge state is predicted at the zigzag edges of graphene. Up to now, the approach used to study zigzag-edged graphene has mostly been limited to scanning tunneling microscopy. The …[Phys. Rev. Lett. 120, 216601] Published Tue May 22, 2018