Oxides of the type SrTi_1-xSn_xO₃ have been prepared using both a solid state and polymeric precursor method and characterized using high-resolution Synchrotron X-ray Diffraction and X-ray Absorption and Raman spectroscopies. The diffraction measurements demonstrate that a continuous pseudo-solid solution exists between the cubic SrTiO₃ and orthorhombic SrSnO₃ end-members with the same sequence of structures cubic $\mathit{Pm}\bar{3}m$ → tetragonal I4/mcm → orthorhombic Imma → orthorhombic Pnma being observed irrespective of the preparation method. The Raman and XAS measurements revealed the presence of extensive disorder in samples treated at low temperatures, and that this disorder is reduced, but not totally eliminated, by annealing above 1300 °C. It is likely the local structure evolves similarly to that established by S-XRD for samples annealed above 1300 °C. This postulate is supported by the Ti K-edge XANES measurements that showed the local symmetry of the Ti cation evolves systematically as Sn⁴⁺ ions replace the Ti⁴⁺cations in the samples, irrespective of the temperature to which the sample had been heated.

已经使用固态和聚合物前体方法制备了SrTi _1-x Sn _x O ₃类型的氧化物，并使用高分辨率的同步加速器X射线衍射和X射线吸收和拉曼光谱学对其进行了表征。衍射测量结果表明，在立方SrTiO ₃和正交晶体SrSnO ₃末端成员之间存在连续的拟固溶体，具有相同的立方结构顺序$\mathit{下午}\bar{3}米$→与制备方法无关，观察到四方晶系I 4 / mcm →斜方晶系Imma →斜方晶系Pnma。拉曼和XAS测量表明，在低温条件下处理的样品中存在广泛的无序现象，通过在1300  °C以上退火，这种无序现象得以缓解，但并未完全消除。对于1300  °C以上退火的样品，其局部结构可能与S-XRD建立的结构相似。Ti K-edge XANES测量结果支持了这一假设，该测量结果表明，随着Sn ⁴⁺离子替代Ti ^4+的出现，Ti阳离子的局部对称性系统地演化。样品中的阳离子，与样品被加热到的温度无关。