Jin, Chenhao
Regan, Emma C.
Yan, Aiming
Iqbal Bakti Utama, M.
Wang, Danqing
Zhao, Sihan
Qin, Ying
Yang, Sijie
Zheng, Zhiren
Shi, Shenyang
Watanabe, Kenji
Taniguchi, Takashi
Tongay, Sefaattin
Zettl, Alex
Wang, Feng
Article History
Received: 27 June 2018
Accepted: 17 January 2019
First Online: 25 February 2019
Change Date: 8 May 2019
Change Type: Correction
Change Details: <b>Change history:</b> In this Letter, the following text has been added to the Acknowledgements section: “the scanning transmission electron microscopy measurements at the Molecular Foundry were supported by the Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract number DE-AC02-05CH11231”. See accompanying Amendment.
Competing interests
: The authors declare no competing interests.