TY - JOUR AU - Cong Hang AU - Wei Liu AU - Winnie Wong-Ng AU - Ziongnan Zhang AU - Yao Jiang AU - Ping Wu AU - Baoyuan Tong AU - Hui Zhao AU - Shouyu Wang C2 - Applied Physics Letters DA - 2019-08-20 00:08:00 LA - en M1 - 770 PB - Applied Physics Letters PY - 2019 TI - Major improvement of ferroelectric and optical properties in Na-doped Ruddlesden-Popper layered hybrid improper ferroelectric compound, Ca3Ti2O7 ER -