Overlayer deposition-induced control of oxide ion concentration in SrFe_0.5Co_0.5O_2.5 oxygen sponges.

ABSTRACT: Controlling the oxide ion (O^2-) concentration in oxides is essential to develop advanced ionic devices, i.e. solid oxide fuel cells, smart windows, memory devices, energy storage devices, and so on. Among many oxides several transition metal (TM)-based perovskite oxides show high oxide ion conductivity, and their physical properties show high sensitivity to the change of the oxide ion concentration. Here, the change in the oxide ion concentration is shown through the overlayer deposition on the SrFe_0.5Co_0.5O_2.5 (SFCO) oxygen sponge film. We grew SFCO films followed by the deposition of two kinds of complex oxide films under exactly the same growth conditions, and observed the changes in the crystal structure, valence states, and magnetic g

SUBMITTER: Lee J 

PROVIDER: S-EPMC9041705 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature