Ueda, Kentaro
Oh, Taekoo
Yang, Bohm-Jung
Kaneko, Ryoma
Fujioka, Jun
Nagaosa, Naoto
Tokura, Yoshinori
Article History
Received: 10 February 2017
Accepted: 3 April 2017
First Online: 24 May 2017
Competing interests
: The authors declare no competing financial interests.