Credit: Xi Zhang, Yuqiao Zhang, et al. ACS Applied Materials & Interfaces. July 12, 2022; Hiromichi Ohta
The crystal structure of the barium cobalt oxide film (left; Xi Zhang, Yuqiao Zhang, et al. ACS Applied Materials & Interfaces. July 12, 2022), and the metal oxide film itself (right; Photo: Hiromichi Ohta).