Crystal structures and phase transition behavior (IMAGE)
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Figure 1. Crystal structures of H– superionic conductor, BLHO, and the phase transition behavior with elevating temperature. Green, blue, red, light blue, and white balls are corresponding to Ba, H, O, Li, and vacancy, respectively. At low temperatures, the localized vacancies inhibit the long-range diffusion (conductivity) of H–. After the phase transition, the vacancies delocalize, and the fast diffusion of H– is realized.
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