Zhang, Chendong
Chen, Yuxuan
Huang, Jing-Kai
Wu, Xianxin
Li, Lain-Jong
Yao, Wang
Tersoff, Jerry
Shih, Chih-Kang
Article History
Received: 27 August 2015
Accepted: 2 December 2015
First Online: 18 January 2016
Change Date: 21 January 2016
Change Type: Update
Change Details: The HTML version of this Article previously published had an incorrect volume number of 6; it should have been 7. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.
Competing interests
: The authors declare no competing financial interests.