The general formula for a perovskite is ABO3 where A and B are cations ... There are many ABO3 compounds for which the ideal cubic structure is distorted to a lower symmetry (e.g. tetragonal, ...

to gain detailed information about the crystalline structure of new perovskite materials. Until Uchida’s image was revealed, perovskites had been considered to have a purely tetragonal crystal ...

The biaxial-strained Sr 4 Al 2 O 7 film has a tetragonal structural symmetry ... The team also verified the exfoliation effect of perovskite oxide films with a broad lattice constant range ...