1. Department of Materials
Science and Engineering, University of Utah, Salt Lake City, Utah 84112, United States
2. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
3. Hefei National Laboratory for Physical
Sciences at the Microscale, University of Science and Technology of China, Anhui 230026, China
4. Key Laboratory of Optoelectronic Technology and Systems of the Education
Ministry of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, China
5. Collaborative Innovation Center of Quantum Matter, Beijing 100084, China