Zhang, Jingdi
Tan, Xuelian
Liu, Mengkun
Teitelbaum, S. W.
Post, K. W.
Jin, Feng
Nelson, K. A.
Basov, D. N.
Wu, Wenbin
Averitt, R. D.
Article History
Received: 9 September 2015
Accepted: 10 June 2016
First Online: 11 July 2016
Competing interests
: The authors declare no competing financial interests.