1. Department of Physics; Pukyong National University; Busan 48513 South Korea
2. Hybrid Interface Materials Global Frontier Research Group; Pusan National University; Busan 46241 South Korea
3. Electronic Convergence Materials Division; Korea Institute of Ceramic Engineering & Technology (KICET); 101 Soho-ro Jinju 52851 South Korea
4. School of Biomedical Engineering; Inje University; Inje-ro 197, Gimhae Gyeongnam 50834 South Korea