Wei Fu, Jianwei Chai, Hiroyo Kawai, Thathsara Maddumapatabandi, Fabio Bussolotti, Ding Huang, Rainer Lee, Siew Lang Teo, Hui Ru Tan, Calvin Pei Yu Wong, Anqi Sng, Yunjie Chen, Chit Siong Lau, Mingsheng Zhang, Henry Medina, Ming Lin, Michel Bosman, Kuan Eng Johnson Goh. "Evidence of air-induced surface transformation of atomic step-engineered sapphire in relation to epitaxial growth of 2D semiconductors." Nature Communications, 2025. doi:10.1038/s41467-025-63452-9