Son, Jangyup; Ryu, Huije; Kwon, Junyoung; Huang, Siyuan; Yu, Jaehyung; Xu, Jingwei; Watanabe, Kenji; Taniguchi, Takashi; Ji, Eunji; Lee, Sol; Shin, Yongjun; Kim, Jong Hun; Kim, Kwanpyo; Van Der Zande, Arend M.; Lee, Gwan-Hyoung
Nano Letters, Vol.21 No.2, pp.891-898