1. Department
of Physics, China Jiliang University, Hangzhou 310018, P. R. China
2. Department of Modern Mechanics, CAS Key
Laboratory of Mechanical Behavior and Design of Materials and Collaborative
Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
3. Hangzhou Key Laboratory of Quantum Matter, Department of Physics, Hangzhou Normal University, Hangzhou 310036, P. R. China