1. Department of Physics, Centre for Advanced 2D Materials and Graphene
Research Centre, Faculty of Science, National University of Singapore, 2 Science Drive 3, Singapore 117551, Singapore
2. Institute of High Performance
Computing, 1 Fusionopolis Way, #16-16
Connexis, Singapore 138632, Singapore
3. Division of Physics and Applied Physics,
School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
4. Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
5. NOVITAS, Nanoelectronics Centre of Excellence, School of Electrical
and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore