1. International Centre for Quantum and Molecular Structures, Department of Physics, Shanghai University, Shanghai 200444, China
2. Zhejiang Laboratory, Hangzhou 311100, China
3. Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire 03755, USA
4. Department of Materials Science and Engineering, The Ilby and Aladar Fleischman Faculty of Engineering, Tel Aviv University, Ramat Aviv, Tel Aviv 6997801, Israel