Author Affiliations +
Keqi Cao,1,2 Xinyan Zhang,1,2 Wei Lin,1,2 Jia Chen,1,2 Hang Yu,1,2 Xiaonan Chen,1,2 Kunpeng Zhai,3 JinHua Bai,1 Haiqing Yuan,1 Ninghua Zhu,3 Ming Li,1 Yu Liu1
1Institute of Semiconductors (China)
2The Univ. of Chinese Academy of Sciences (China)
3Nankai Univ. (China)