| Strontium titanate (SrTiO3) has a perovskite structure like CaTiO3, the mineral from which the name was derived. At room temperature it exists in thew cubic form, but transforms into the tetragonal structure at temperatures less than 105K. At very low temperatures, strontium titanate exhibits piezoelectric and superconducting characteristics. Strontium titanate also exhibits a very large dielectric constant. |