Li, Jian http://orcid.org/0000-0003-0297-6528
Neupert, Titus http://orcid.org/0000-0003-0604-041X
Bernevig, B. Andrei
Yazdani, Ali
Article History
Received: 29 April 2014
Accepted: 7 December 2015
First Online: 21 January 2016
Competing interests
: The authors declare no competing financial interests.