Regulating oxygen content and superconductivity in La${}_3$Ni${}_2$O${}_{7+\delta }$

Peiyue Ma, Jingyuan Li, Xing Huang +17

The synthesis of high-quality Ruddlesden-Popper (RP) nickelates remains challenging due to variations in oxygen content and the prevalence of intergrown RP phases. Precisely contro…