In the example shown below, (SrTiO3, download cif) the Sr atoms sit in the 12 coordinate A site, while the Ti atoms occupy the 6 coordinate B site. There are many ABO3 compounds for which the ideal ...

Until Uchida’s image was revealed, perovskites had been considered to have a purely tetragonal crystal structure, but Uchida’s discovery showed that they can also have a cubic structure of a ...