1. School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon-si, Gyeonggi-do 16419, Republic of Korea
2. Center for Quantum Nanoscience, Institute for Basic Science (IBS), Seoul 03760, Republic of Korea
3. SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon-si, Gyeonggi-do 16419, Republic of Korea
4. Department of Nano Science and Technology, Sungkyunkwan University, Suwon-si, Gyeonggi-do 16419, Republic of Korea
5. Department of Semiconductor Convergence Engineering, Suwon-si, Gyeonggi-do 16419, Republic of Korea
6. Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
7. AVP Process Development Team, Samsung Electronics, Chungcheongnam-do, Cheonan-si 31086, South Korea
8. Department of Nano Engineering, Sungkyunkwan University, Suwon-si, Gyeonggi-do 16419, Republic of Korea
9. Department of Physics, Ewha Womans University, Seoul 03760, Republic of Korea