87Sr NMR applications for studying the structure of materials
Ultra-wide line solid state NMR of quadrupolar nuclei: example of strontium-87

In its natural state, strontium is mainly found as carbonate (SrCO₃, strontianite) and sulfate (SrSO₄, celestine). A very large number of synthetic materials also contain this element. For example, until recently, strontium-containing glass was used in CRT televisions to slow down X-ray emissions. In the field of microelectronics, Sr titanate (such as SrTiO₃) and Sr niobate (such as SrNb₂O₆ and Sr₂Nb₂O₇) phases have attracted much interest due to their dielectric properties. SrTiO₃ has a perovskite structure and a high dielectric constant, which can be modulated by partial substitution of Sr²⁺ by other metal cations, leading to remarkable thermoelectric...