Keke Jiao, Yongjian Wang, Rui Niu, Wanli Zhu, Huixin Xu, Li Zheng, Changjin Zhang. "Insulator-to-metal transition in Co-doped La3Ni2O7−
                    <i>δ</i>
                    with high oxygen pressure annealing." Journal of Applied Physics (2026). https://doi.org/10.1063/5.0304600