Oxygen stoichiometry and properties of Bi2Sr2-xCa1+xCu2O8+delta

Citation
Ib. Bobylev et al., Oxygen stoichiometry and properties of Bi2Sr2-xCa1+xCu2O8+delta, INORG MATER, 35(2), 1999, pp. 142-147
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
35
Issue
2
Year of publication
1999
Pages
142 - 147
Database
ISI
SICI code
0020-1685(199902)35:2<142:OSAPOB>2.0.ZU;2-7
Abstract
The effect of partial calcium substitution for strontium on the oxygen stoi chiometry, T-c, Delta T-c, j(c), and rho of 2212 was studied. The way in wh ich the superconducting properties of the material vary with annealing temp erature was found to depend strongly on the Sr/Ca ratio. The possible mecha nisms of the observed behavior are discussed. The conclusion is drawn that the strong effect of structural ordering on T-c disguises the correlation b etween the transition temperature and oxygen stoichiometry.