| Abstract: | Literature data and our studies are used to consider three types of structural inhomogeneity in perovskite-like superconductors.
Their irregular mixed-layered structures differ in the nature and distribution of impurity layers. A three-dimensional diagram
is suggested for each type of defect. A great variety of postgrowth conditions are discussed to choose optimal conditions
for obtaining perfect single crystals with the desired content of oxygen and Ts.
St. Petersburg State University. Translated fromZhurnal Strukturnoi Khimii, Vol. 35, No. 5, pp. 15–22, September–October, 1994.
Translated by O. Kharlamova |
