✍ Scribed by A. Priese; A. Reller
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
The synthesis of several substituted and unsubstituted derivatives of the series of layered perovskites Ln2Ba2Cu2Ti2O11 by a sol-gel method is reported. Reduced synthesis temperatures were attained for La, Nd (750°C), and Eu (900°C) derivatives, whereas Tb derivatives could not be obtained by this m
Pr,Ba,Cu,Ti,O, ], a possible new superconducting parent phase, was prepared by a standard ceramic method, Intermediate products were identified by X-ray powder diffraction. Rietveld analysis revealed the layered perovskite crystal structure of Pr,Ba,Cu,Ti,O, , and the relationship to known supercond
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 thermogravime