
TY  - JOUR
A1  - White, TJ 
A1  - Barnea, Z 
A1  - Goodman, P 
A1  - Jensen, DG 
T1  - Preparation and Microstructural Investigation of the High?Tc Superconductor Pb2Sr2Y0.5Ca0.5Cu308
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1989
VL  - 42
IS  - 5
SP  - 551
EP  - 564
KW  - 
UR  - https://doi.org/10.1071/PH890551 
N2  - Simple conditions for the preparation of the high-Tc superconductor Pb2Sr2Yo-sCao·sCu308+o in single phase are given. High resolution electron microscope studies of this material confirm the basic orthorhombic structure having Cmmm symmetry. Overlaying this structure is a perturbation due to random displacements of Pb from the ideal square-symmetric Sites, attributed to a randomness in oxygen sub-stoichiometry. This and the absence of superstructure ordering appears to characterise the uperconducting form of this compound. 
ER  -

