Author Affiliations

Wei Li,¹ Zheng Zheng,^1,* Yusheng Bian,¹ Lei Liu,¹ Xin Zhao,¹ Jiansheng Liu,¹ Jinsong Zhu,^* and Tao Zhou^**

¹School of Electronic and Information Engineering, Beihang University, 37 Xueyuan Rd, Beijing 100191, China

^*National Center for Nanoscience and Technology of China, Zhongguancun North First Street No. 2, Beijing 100190, China

^**Department of Physics, New Jersey Institute of Technology, Newark, NJ 07102, USA.

^*Corresponding author: zhengzheng@buaa.edu.cn