The perovskite crystal structure











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The perovskite crystal structure, ABO3, is incredibly important. Many important technologies such as dielectrics, ferroelectrics, and more rely on materials in this crystal structure. The structure consists of two different cations (A and B) which must combine to be a +6 charge. Commonly a 2+ and a 4+ cation. The A cation sits at cube corners, the B cation sits at the unit cell center. The oxygen anion sits at face centers. Perovskites can be ideal or non-ideal. The lattice parameter based on connected B-O distances and A-O distances might not be the same leading to distortions (tilting) of 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