Strontium Titanate Sputtering Targets (SrTiO3)

Strontium titanate is an oxide of strontium and titanium with the chemical formula SrTiO3. At room temperature, it is a centrosymmetric paraelectric material with a Perovskite structure. At low temperatures, it approaches a ferroelectric phase transition with a very large dielectric constant ~104 but remains paraelectric down to the lowest temperatures measured due to quantum fluctuations, making it a quantum paraelectric. It was long thought to be an artificial material, until 1982 when its natural counterpart—discovered in Siberia and named tausonite—was recognized by the IMA.