1. School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, People’s Republic of China
2. Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong 999077, People’s Republic of China
3. Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, People’s Republic of China
4. School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, People’s Republic of China