1. Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
2. Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 10083, China
3. Shenyang National Laboratory for Materials Science, Institute of Metal Research (IMR), Chinese Academy of Sciences (CAS), Shenyang 110016, China
4. Department of Electrophysics, National Chiao Tung University, Hsinchu 30010, Taiwan
5. Computer, Electrical, and Mathematical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
6. School of Advanced Materials and Nanotechnology, Xidian University, Xian, Shaanxi 710071, China
7. School of Material Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, United States
8. Corporate Research and Chief Technology Office, Taiwan Semiconductor Manufacturing Company (TSMC), Hsinchu 30075, Taiwan