1. Department of Physics and Center for Quantum Materials, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
2. State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
3. Nanotechnology Research Laboratory, Research School of Engineering, Australian National University, Canberra, ACT 2601, Australia
4. Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
5. Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
6. Department of Mechanical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
7. Department of Physics, Arizona State University, Tempe, Arizona 85287, United States