1. Advanced Materials & Processing Center, Institute for Advanced Engineering, 175-28, Goan-ro 51beon-gil, Baegam-myeon, Cheoin-gu, Yongin-si, Gyeonggi-do 17180, Korea
2. Department of Physics, Pukyong National University, 45 Yongsoro, Namgu, Busan 48513, Korea
3. Center for Quantum Information, Korea Institute of Science and Technology (KIST), 5, Hwarang-ro 14-gil, Seongbuk-gu, Seoul 02792, Korea
4. Department of Materials Science and Engineering, Gachon University, 1342 Seongnamdaero, Sujeong-gu, Seongnam-si, Gyeonggi-do 13120, Korea