High-pressure behavior of the ternary bismuth oxides Bi2Al4O9, Bi2Ga4O9 and Bi2Mn4O10

The influence of cation substitution on the high-pressure behavior of ternary bismuth oxides was investigated by powder X-ray diffraction using the diamond anvil cell technique. While Bi2Ga4O9 shows a reversible phase transition at approximately 16 GPa, Bi2Al4O9 and Bi2Mn4O10 are structurally stable up to 29 and 35 GPa, respectively. Complementary density functional theory-based model calculations were performed on Bi2Ga4O9.