✍ Scribed by A. Gormezano; M.T. Weller
No coin nor oath required. For personal study only.
The new quadruple perovskite Lnb2CU2Ti2.~Sn~O~v6, 0.0_< x<_ 0.5, Ln = Gd, Sm have structures based on alternating double layers of CuOs square pyramids and TiO 6 oct~edra. The structural properties of the doped derivatives of these materials have been studied by X-ray diffraction and thermogravimetric analysis in order to determine the oxygen content of these materials. Substitution of Sc on the Ti site has been successfully undertaken with the object of raising the copper oxidation state above 2 +. The electronic properties of these materials have been measured and are reported.
📜 SIMILAR VOLUMES
New oxides of general formula Sr 2 Ru 2Àx Co x O 6Àd (0.5pxp1.5) have been synthesized as polycrystalline materials and characterized structurally by X-ray diffraction. For 0.5pxo0.67 the orthorhombic, Pnma, perovskite structure of the end member, SrRuO 3 , is found. At x ¼ 0.67 a phase separation i