Junxiong Hu1,2,3,†, Jian Gou2,†, Ming Yang4,†, Ganesh Ji Omar1,2, Junyou Tan3, Shengwei Zeng1,2, Yanpeng Liu5, Kun Han1,2, Zhishiuh Lim1,2, Zhen Huang1,2, Andrew Thye Shen Wee2,3, and Ariando Ariando1,2,3,*
1 NUSNNI, National University of Singapore, Singapore, 117411 Singapore
2 Department of Physics, National University of Singapore, Singapore, 117542 Singapore
3 Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, Singapore, 117551 Singapore
4 Institute of Materials Research & Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, 138634 Singapore
5 State Key Laboratory of Mechanics and Control of Mechanical Structures, MOE Key Laboratory for Intelligent Nano Materials and Devices and Institute of Nano Science, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016 China
† J.X.H., J.G., and M.Y. contributed equally to this work.