1. Strategic Technology Research Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
2. Department of Physics and Research Institute for Convergence of Basic Sciences, Hanyang University (HYU), Seoul 04763, Republic of Korea
3. Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
4. Quantum Technology Institute, Korea Research Institute of Standards and Science (KRISS), Daejeon 34113, Republic of Korea
5. Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
6. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology(KAIST), Daejeon 34141, Republic of Korea
7. Graduate Program of Semiconductor Science and Engineering, Yonsei University (YU), Seoul 03722, Republic of Korea
8. Department of High Temperature Materials, Korea Institute of Materials Science (KIMS), Changwon 51508, Republic of Korea
9. Department of Physics, Yonsei University (YU), Seoul 03722, Republic of Korea
10. Department of Physics and Astronomy, Seoul National University (SNU), Seoul 08826, Republic of Korea