All-Optical Artificial Synapse Based on ε-Ga 2 O 3 and β-Ga 2 O 3 Mixed-Phase Thin Films. - Niu, Jiale; Liu, Zixuan; Ding, Xuewen; Meng, Zhang; Li, Xianxu; Deng, Jiajun; Wang, Wenjie; Lu, Fangchao (Materials (1996-1944), 2026)