Yin, Hang
Ding, Yonghui
Zhai, Yao
Tan, Wei
Yin, Xiaobo
Funding for this research was provided by:
National Science Foundation (DMR-1420736)
Article History
Received: 21 February 2018
Accepted: 28 August 2018
First Online: 5 October 2018
Competing interests
: The authors declare no competing interests.