1. Department of Physics, Van der Waals Materials Research Center, Yonsei University, Seoul 03722, Republic of Korea.
2. Department of Electrical Engineering, Yonsei University, Seoul 03722, Republic of Korea.
3. Center for Nanomedicine, Institute for Basic Science (IBS), Seoul 03722, Republic of Korea.
4. School of Computational Sciences, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea.