Author Affiliations +
Sheng-Wen Xie,1,2 Cheng-Ao Yang,1,2 Ye Yuan,1,2 Shu-Shan Huang,1,2 Yi Zhang,1,2 Jin-ming Shang,1,2 Yu Zhang,1,2 Ying-Qiang Xu,1,2 Zhi-Chuan Niu1,2
1Institute of Semiconductors (China)
2Univ. of Chinese Academy of Sciences (China)