Hao, Yufeng
Wang, Lei http://orcid.org/0000-0002-1919-9107
Liu, Yuanyue http://orcid.org/0000-0002-5880-8649
Chen, Hua http://orcid.org/0000-0003-0676-3079
Wang, Xiaohan
Tan, Cheng
Nie, Shu
Suk, Ji Won
Jiang, Tengfei
Liang, Tengfei
Xiao, Junfeng http://orcid.org/0000-0002-8057-7429
Ye, Wenjing
Dean, Cory R.
Yakobson, Boris I.
McCarty, Kevin F.
Kim, Philip
Hone, James
Colombo, Luigi
Ruoff, Rodney S.
Article History
Received: 1 September 2015
Accepted: 9 December 2015
First Online: 1 February 2016
Change Date: 26 February 2016
Change Type: Correction
Change Details: In the version of this Letter originally published online, in Fig. 2d, the values on the <i>y</i> axis were incorrect. This error has been corrected in all versions of the Letter.
Competing interests
: The authors declare no competing financial interests.